CVE-2018-1000170

@@ -75,7 +75,7 @@ THE SOFTWARE.
               <j:mute>${customizedFields.add(name)}</j:mute>
             </j:if>
           </td><td width="1">
-            <input type="button" value="&#x25BC;" onclick="expandTextArea(this,'textarea.${name}')"
+            <input type="button" value="&#x25BC;" onclick="expandTextArea(this,'textarea.${h.jsStringEscape(name)}')"
                 tooltip="${%tooltip}"/>
           </td>
         </tr>

@@ -48,7 +48,7 @@ THE SOFTWARE.
   </st:documentation>
   <f:entry>
     <div style="float:right">
-      <input type="button" value="${title}" class="yui-button validate-button" onclick="validateButton('${descriptor.descriptorFullUrl}/${method}','${with}',this)" />
+      <input type="button" value="${title}" class="yui-button validate-button" onclick="validateButton('${descriptor.descriptorFullUrl}/${h.jsStringEscape(method)}','${h.jsStringEscape(with)}',this)" />
     </div>
     <div style="display:none;">
       <img src="${imagesURL}/spinner.gif" /> ${attrs.progress}

@@ -31,7 +31,7 @@ THE SOFTWARE.
         <st:attribute name="href" use="required">
             The URL to go to.
         </st:attribute>
-        <st:attribute name="post">
+        <st:attribute name="post" type="boolean">
             Use POST rather than GET (recommended).
         </st:attribute>
         <st:attribute name="message" use="required">
@@ -42,7 +42,7 @@ THE SOFTWARE.
         </st:attribute>
     </st:documentation>
     <j:set var="id" value="${h.generateId()}"/>
-    <a href="#" class="${class}" onclick="confirmPOST_${id}(${post ?: 'false'}, '${attrs.href}', '${h.jsStringEscape(message)}')"><d:invokeBody/></a>
+    <a href="#" class="${class}" onclick="confirmPOST_${id}(${post ? 'true' : 'false'}, '${h.jsStringEscape(attrs.href)}', '${h.jsStringEscape(message)}')"><d:invokeBody/></a>
     <script>
         function confirmPOST_${id}(post, href, message) {
             if (confirm(message)) {

@@ -39,13 +39,13 @@ THE SOFTWARE.
     </st:documentation>
     <j:choose>
       <j:when test="${confirm == null}">
-        <a class="stop-button-link" href="${href}" onclick='new Ajax.Request("${href}"); return false;'>
-          <l:icon class="icon-stop icon-sm"/>
+        <a class="stop-button-link" href="${href}" onclick='new Ajax.Request("${h.jsStringEscape(href)}"); return false;'>
+          <l:icon class="icon-stop icon-sm" alt="${alt}"/>
         </a>
       </j:when>
       <j:otherwise>
-          <a class="stop-button-link" href="${href}" onclick='if(confirm("${confirm}"))new Ajax.Request("${href}"); return false;'>
-            <l:icon class="icon-stop icon-sm"/>
+          <a class="stop-button-link" href="${href}" onclick='if(confirm("${h.jsStringEscape(confirm)}"))new Ajax.Request("${h.jsStringEscape(href)}"); return false;'>
+            <l:icon class="icon-stop icon-sm" alt="${alt}"/>
           </a>
       </j:otherwise>
     </j:choose>

@@ -24,39 +24,130 @@
 package lib.form;
 
 import static com.gargoylesoftware.htmlunit.HttpMethod.POST;
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertNotEquals;
+import static org.junit.Assert.assertNotNull;
+import static org.junit.Assert.assertTrue;
+
 import com.gargoylesoftware.htmlunit.Page;
 import com.gargoylesoftware.htmlunit.WebRequest;
+import com.gargoylesoftware.htmlunit.html.DomNodeList;
+import com.gargoylesoftware.htmlunit.html.HtmlAnchor;
+import com.gargoylesoftware.htmlunit.html.HtmlButton;
+import com.gargoylesoftware.htmlunit.html.HtmlButtonInput;
+import com.gargoylesoftware.htmlunit.html.HtmlElement;
+import com.gargoylesoftware.htmlunit.html.HtmlElementUtil;
 import com.gargoylesoftware.htmlunit.html.HtmlPage;
+import hudson.model.UnprotectedRootAction;
+import hudson.util.HttpResponses;
+import lib.layout.ConfirmationLinkTest;
+import org.junit.Assert;
+import org.junit.Rule;
+import org.junit.Test;
 import org.jvnet.hudson.test.Issue;
 import org.jvnet.hudson.test.HudsonTestCase;
+import org.jvnet.hudson.test.JenkinsRule;
+import org.jvnet.hudson.test.TestExtension;
+import org.kohsuke.stapler.HttpResponse;
+import org.kohsuke.stapler.StaplerRequest;
+import org.kohsuke.stapler.WebMethod;
 import org.w3c.dom.NodeList;
 
+import javax.annotation.CheckForNull;
+
 /**
  * @author Kohsuke Kawaguchi
  */
-public class ExpandableTextboxTest extends HudsonTestCase {
+public class ExpandableTextboxTest {
+    @Rule
+    public JenkinsRule j = new JenkinsRule();
+    
     @Issue("JENKINS-2816")
+    @Test
     public void testMultiline() throws Exception {
         // because attribute values are normalized, it's not very easy to encode multi-line string as @value. So let's use the system message here.
-        jenkins.setSystemMessage("foo\nbar\nzot");
+        j.jenkins.setSystemMessage("foo\nbar\nzot");
         HtmlPage page = evaluateAsHtml("<l:layout><l:main-panel><table><j:set var='instance' value='${it}'/><f:expandableTextbox field='systemMessage' /></table></l:main-panel></l:layout>");
         // System.out.println(page.getWebResponse().getContentAsString());
 
         NodeList textareas = page.getElementsByTagName("textarea");
         assertEquals(1, textareas.getLength());
-        assertEquals(jenkins.getSystemMessage(),textareas.item(0).getTextContent());
+        assertEquals(j.jenkins.getSystemMessage(),textareas.item(0).getTextContent());
     }
 
     /**
      * Evaluates the literal Jelly script passed as a parameter as HTML and returns the page.
      */
     protected HtmlPage evaluateAsHtml(String jellyScript) throws Exception {
-        HudsonTestCase.WebClient wc = new WebClient();
-        
+        JenkinsRule.WebClient wc = j.createWebClient();
         WebRequest req = new WebRequest(wc.createCrumbedUrl("eval"), POST);
         req.setEncodingType(null);
         req.setRequestBody("<j:jelly xmlns:j='jelly:core' xmlns:st='jelly:stapler' xmlns:l='/lib/layout' xmlns:f='/lib/form'>"+jellyScript+"</j:jelly>");
         Page page = wc.getPage(req);
         return (HtmlPage) page;
     }
+    
+    @Test
+    public void noInjectionArePossible() throws Exception {
+        TestRootAction testParams = j.jenkins.getExtensionList(UnprotectedRootAction.class).get(TestRootAction.class);
+        assertNotNull(testParams);
+    
+        checkRegularCase(testParams);
+        checkInjectionInName(testParams);
+    }
+    
+    private void checkRegularCase(TestRootAction testParams) throws Exception {
+        testParams.paramName = "testName";
+        
+        JenkinsRule.WebClient wc = j.createWebClient();
+        wc.getOptions().setThrowExceptionOnFailingStatusCode(false);
+        HtmlPage p = wc.goTo("test");
+        
+        HtmlElementUtil.click(getExpandButton(p));
+        assertNotEquals("hacked", p.getTitleText());
+    }
+    
+    private void checkInjectionInName(TestRootAction testParams) throws Exception {
+        testParams.paramName = "testName',document.title='hacked'+'";
+        
+        JenkinsRule.WebClient wc = j.createWebClient();
+        wc.getOptions().setThrowExceptionOnFailingStatusCode(false);
+        HtmlPage p = wc.goTo("test");
+        
+        HtmlElementUtil.click(getExpandButton(p));
+        assertNotEquals("hacked", p.getTitleText());
+    }
+    
+    private HtmlButtonInput getExpandButton(HtmlPage page){
+        DomNodeList<HtmlElement> buttons = page.getElementById("test-panel").getElementsByTagName("input");
+        // the first one is the text input
+        assertEquals(2, buttons.size());
+        return (HtmlButtonInput) buttons.get(1);
+    }
+    
+    @TestExtension("noInjectionArePossible")
+    public static final class TestRootAction implements UnprotectedRootAction {
+        
+        public String paramName;
+        
+        @Override
+        public @CheckForNull String getIconFileName() {
+            return null;
+        }
+        
+        @Override
+        public @CheckForNull String getDisplayName() {
+            return null;
+        }
+        
+        @Override
+        public String getUrlName() {
+            return "test";
+        }
+        
+        @WebMethod(name = "submit")
+        public HttpResponse doSubmit(StaplerRequest request) {
+            return HttpResponses.plainText("method:" + request.getMethod());
+        }
+    }
 }

@@ -23,53 +23,185 @@
  */
 package lib.form;
 
+import com.gargoylesoftware.htmlunit.html.DomNodeList;
 import com.gargoylesoftware.htmlunit.html.HtmlButton;
+import com.gargoylesoftware.htmlunit.html.HtmlElement;
 import com.gargoylesoftware.htmlunit.html.HtmlElementUtil;
 import com.gargoylesoftware.htmlunit.html.HtmlFormUtil;
-import org.jvnet.hudson.test.HudsonTestCase;
+import hudson.model.UnprotectedRootAction;
+import jenkins.model.Jenkins;
+import org.junit.Rule;
+import org.junit.Test;
+import org.jvnet.hudson.test.JenkinsRule;
+import org.jvnet.hudson.test.TestExtension;
 import org.kohsuke.stapler.QueryParameter;
 import hudson.model.Describable;
 import hudson.model.Descriptor;
 import hudson.Extension;
 import com.gargoylesoftware.htmlunit.html.HtmlPage;
+import org.kohsuke.stapler.StaplerRequest;
+
+import javax.annotation.CheckForNull;
+
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertNotEquals;
+import static org.junit.Assert.assertNotNull;
+import static org.junit.Assert.assertTrue;
+import static org.junit.Assert.assertFalse;
 
 /**
  *
  *
  * @author Kohsuke Kawaguchi
  */
-public class ValidateButtonTest extends HudsonTestCase implements Describable<ValidateButtonTest> {
+public class ValidateButtonTest {
+    @Rule
+    public JenkinsRule j = new JenkinsRule();
 
-    public void test1() throws Exception {
-        DescriptorImpl d = getDescriptor();
+    @Test
+    public void testValidateIsCalled() throws Exception {
+        TestValidateIsCalled.DescriptorImpl d = j.jenkins.getDescriptorByType(TestValidateIsCalled.DescriptorImpl.class);
+        assertNotNull(d);
+        
         d.test1Outcome = new Exception(); // if doValidateTest1() doesn't get invoked, we want to know.
-        HtmlPage p = createWebClient().goTo("self/test1");
+        HtmlPage p = j.createWebClient().goTo("test");
         HtmlButton button = HtmlFormUtil.getButtonByCaption(p.getFormByName("config"), "test");
         HtmlElementUtil.click(button);
+        
         if (d.test1Outcome!=null)
             throw d.test1Outcome;
     }
-
-    public DescriptorImpl getDescriptor() {
-        return jenkins.getDescriptorByType(DescriptorImpl.class);
+    
+    @TestExtension("testValidateIsCalled")
+    public static final class TestValidateIsCalled implements Describable<TestValidateIsCalled>, UnprotectedRootAction {
+        @Override
+        public @CheckForNull String getIconFileName() {
+            return null;
+        }
+    
+        @Override
+        public @CheckForNull String getDisplayName() {
+            return null;
+        }
+    
+        @Override
+        public String getUrlName() {
+            return "test";
+        }
+    
+        public DescriptorImpl getDescriptor() {
+            return Jenkins.getInstance().getDescriptorByType(DescriptorImpl.class);
+        }
+    
+        @Extension
+        public static final class DescriptorImpl extends Descriptor<TestValidateIsCalled> {
+            private Exception test1Outcome;
+    
+            public void doValidateTest1(@QueryParameter("a") String a, @QueryParameter("b") boolean b,
+                                        @QueryParameter("c") boolean c, @QueryParameter("d") String d,
+                                        @QueryParameter("e") String e) {
+                try {
+                    assertEquals("avalue",a);
+                    assertTrue(b);
+                    assertFalse(c);
+                    assertEquals("dvalue",d);
+                    assertEquals("e2",e);
+                    test1Outcome = null;
+                } catch (Exception t) {
+                    test1Outcome = t;
+                }
+            }
+        }
     }
-
-    @Extension
-    public static final class DescriptorImpl extends Descriptor<ValidateButtonTest> {
-        private Exception test1Outcome;
-
-        public void doValidateTest1(@QueryParameter("a") String a, @QueryParameter("b") boolean b,
-                                    @QueryParameter("c") boolean c, @QueryParameter("d") String d,
-                                    @QueryParameter("e") String e) {
-            try {
-                assertEquals("avalue",a);
-                assertTrue(b);
-                assertFalse(c);
-                assertEquals("dvalue",d);
-                assertEquals("e2",e);
-                test1Outcome = null;
-            } catch (Exception t) {
-                test1Outcome = t;
+    
+    @Test
+    public void noInjectionArePossible() throws Exception {
+        NoInjectionArePossible.DescriptorImpl d = j.jenkins.getDescriptorByType(NoInjectionArePossible.DescriptorImpl.class);
+        assertNotNull(d);
+    
+        checkRegularCase(d);
+        checkInjectionInMethod(d);
+        checkInjectionInWith(d);
+    }
+    
+    private void checkRegularCase(NoInjectionArePossible.DescriptorImpl descriptor) throws Exception {
+        descriptor.paramMethod = "validateInjection";
+        descriptor.paramWith = "a,b";
+        
+        JenkinsRule.WebClient wc = j.createWebClient();
+        wc.getOptions().setThrowExceptionOnFailingStatusCode(false);
+        HtmlPage p = wc.goTo("test");
+        
+        descriptor.wasCalled = false;
+        HtmlElementUtil.click(getValidateButton(p));
+        assertNotEquals("hacked", p.getTitleText());
+        assertTrue(descriptor.wasCalled);
+    }
+    
+    private void checkInjectionInMethod(NoInjectionArePossible.DescriptorImpl descriptor) throws Exception {
+        descriptor.paramMethod = "validateInjection',document.title='hacked'+'";
+        descriptor.paramWith = "a,b";
+        
+        JenkinsRule.WebClient wc = j.createWebClient();
+        wc.getOptions().setThrowExceptionOnFailingStatusCode(false);
+        HtmlPage p = wc.goTo("test");
+        
+        // no check on wasCalled because the button that is expected by the method is not passed (arguments are shifted due to the injection)
+        HtmlElementUtil.click(getValidateButton(p));
+        assertNotEquals("hacked", p.getTitleText());
+    }
+    
+    
+    private void checkInjectionInWith(NoInjectionArePossible.DescriptorImpl descriptor) throws Exception {
+        descriptor.paramMethod = "validateInjection";
+        descriptor.paramWith = "a,b',document.title='hacked'+'";
+        
+        JenkinsRule.WebClient wc = j.createWebClient();
+        wc.getOptions().setThrowExceptionOnFailingStatusCode(false);
+        HtmlPage p = wc.goTo("test");
+        
+        descriptor.wasCalled = false;
+        HtmlElementUtil.click(getValidateButton(p));
+        assertNotEquals("hacked", p.getTitleText());
+        assertTrue(descriptor.wasCalled);
+    }
+    
+    private HtmlButton getValidateButton(HtmlPage page){
+        DomNodeList<HtmlElement> buttons = page.getElementById("test-panel").getElementsByTagName("button");
+        assertEquals(1, buttons.size());
+        return (HtmlButton) buttons.get(0);
+    }
+    
+    @TestExtension("noInjectionArePossible")
+    public static final class NoInjectionArePossible implements Describable<NoInjectionArePossible>, UnprotectedRootAction {
+        @Override
+        public @CheckForNull String getIconFileName() {
+            return null;
+        }
+        
+        @Override
+        public @CheckForNull String getDisplayName() {
+            return null;
+        }
+        
+        @Override
+        public String getUrlName() {
+            return "test";
+        }
+        
+        public DescriptorImpl getDescriptor() {
+            return Jenkins.getInstance().getDescriptorByType(DescriptorImpl.class);
+        }
+        
+        @Extension
+        public static final class DescriptorImpl extends Descriptor<NoInjectionArePossible> {
+            private boolean wasCalled = false;
+            
+            public String paramMethod = "validateInjection";
+            public String paramWith = null;
+            
+            public void doValidateInjection(StaplerRequest request) {
+                wasCalled = true;
             }
         }
     }

@@ -0,0 +1,205 @@
+/*
+ * The MIT License
+ *
+ * Copyright (c) 2018, CloudBees, Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+package lib.layout;
+
+import com.gargoylesoftware.htmlunit.Page;
+import com.gargoylesoftware.htmlunit.html.DomNodeList;
+import com.gargoylesoftware.htmlunit.html.HtmlAnchor;
+import com.gargoylesoftware.htmlunit.html.HtmlElement;
+import com.gargoylesoftware.htmlunit.html.HtmlElementUtil;
+import com.gargoylesoftware.htmlunit.html.HtmlPage;
+import hudson.model.UnprotectedRootAction;
+import hudson.util.HttpResponses;
+import org.junit.Rule;
+import org.junit.Test;
+import org.jvnet.hudson.test.JenkinsRule;
+import org.jvnet.hudson.test.TestExtension;
+import org.kohsuke.stapler.HttpResponse;
+import org.kohsuke.stapler.StaplerRequest;
+import org.kohsuke.stapler.WebMethod;
+
+import javax.annotation.CheckForNull;
+
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertNotEquals;
+import static org.junit.Assert.assertNotNull;
+import static org.junit.Assert.assertTrue;
+
+public class ConfirmationLinkTest {
+    @Rule
+    public JenkinsRule j = new JenkinsRule();
+    
+    private static final String hrefPayload = "',document.title='hacked'+'";
+    private static final String messagePayload = "',document.title='hacked'+'";
+    private static final String postPayload = "document.title='hacked'";
+    
+    @Test
+    public void noInjectionArePossible() throws Exception {
+        TestRootAction testParams = j.jenkins.getExtensionList(UnprotectedRootAction.class).get(TestRootAction.class);
+        assertNotNull(testParams);
+
+        checkRegularCase(testParams);
+        checkRegularCasePost(testParams);
+        checkInjectionInHref(testParams);
+        checkInjectionInMessage(testParams);
+        checkInjectionInPost(testParams);
+    }
+    
+    private void checkRegularCase(TestRootAction testParams) throws Exception {
+        testParams.paramHref = "#";
+        testParams.paramMessage = "Message to confirm the click";
+        testParams.paramClass = null;
+        testParams.paramPost = null;
+        
+        HtmlPage p = j.createWebClient().goTo("test");
+        assertTrue(p.getWebResponse().getContentAsString().contains("Message to confirm the click"));
+    }
+    
+    private void checkRegularCasePost(TestRootAction testParams) throws Exception {
+        testParams.paramHref = "submit";
+        testParams.paramMessage = "Message to confirm the click";
+        testParams.paramClass = null;
+        
+        testParams.paramPost = true;
+        assertMethodPostAfterClick();
+    
+        testParams.paramPost = "true";
+        assertMethodPostAfterClick();
+    
+        testParams.paramPost = "TruE";
+        assertMethodPostAfterClick();
+    
+        testParams.paramPost = false;
+        assertMethodGetAfterClick();
+    
+        testParams.paramPost = "false";
+        assertMethodGetAfterClick();
+        
+        testParams.paramPost = "any other string";
+        assertMethodGetAfterClick();
+    }
+    
+    private void assertMethodGetAfterClick() throws Exception {
+        Page pageAfterClick = getPageAfterClick();
+        assertTrue(pageAfterClick.getWebResponse().getContentAsString().contains("method:GET"));
+    }
+    
+    private void assertMethodPostAfterClick() throws Exception {
+        Page pageAfterClick = getPageAfterClick();
+        assertTrue(pageAfterClick.getWebResponse().getContentAsString().contains("method:POST"));
+    }
+    
+    private Page getPageAfterClick() throws Exception {
+        JenkinsRule.WebClient wc = j.createWebClient();
+        wc.getOptions().setThrowExceptionOnFailingStatusCode(false);
+        HtmlPage p = wc.goTo("test");
+    
+        return HtmlElementUtil.click(getClickableLink(p));
+    }
+    
+    private void checkInjectionInHref(TestRootAction testParams) throws Exception {
+        testParams.paramHref = hrefPayload;
+        testParams.paramMessage = "Message to confirm the click";
+        testParams.paramClass = null;
+        testParams.paramPost = null;
+        
+        JenkinsRule.WebClient wc = j.createWebClient();
+        wc.getOptions().setThrowExceptionOnFailingStatusCode(false);
+        HtmlPage p = wc.goTo("test");
+        
+        Page pageAfterClick = HtmlElementUtil.click(getClickableLink(p));
+        assertNotEquals("hacked", p.getTitleText());
+        assertTrue(p.getWebResponse().getContentAsString().contains("Message to confirm the click"));
+        // the url it clicks on is escaped and so does not exist
+        assertEquals(404, pageAfterClick.getWebResponse().getStatusCode());
+    }
+    
+    private void checkInjectionInMessage(TestRootAction testParams) throws Exception {
+        testParams.paramHref = "#";
+        testParams.paramMessage = messagePayload;
+        testParams.paramClass = null;
+        testParams.paramPost = null;
+        
+        JenkinsRule.WebClient wc = j.createWebClient();
+        wc.getOptions().setThrowExceptionOnFailingStatusCode(false);
+        HtmlPage p = wc.goTo("test");
+    
+        Page pageAfterClick = HtmlElementUtil.click(getClickableLink(p));
+        assertNotEquals("hacked", p.getTitleText());
+        // the url is normally the same page so it's ok
+        assertEquals(200, pageAfterClick.getWebResponse().getStatusCode());
+    }
+    
+    private void checkInjectionInPost(TestRootAction testParams) throws Exception {
+        testParams.paramHref = "#";
+        testParams.paramMessage = "Message to confirm the click";
+        testParams.paramClass = null;
+        testParams.paramPost = postPayload;
+        
+        JenkinsRule.WebClient wc = j.createWebClient();
+        wc.getOptions().setThrowExceptionOnFailingStatusCode(false);
+        HtmlPage p = wc.goTo("test");
+        
+        Page pageAfterClick = HtmlElementUtil.click(getClickableLink(p));
+        assertNotEquals("hacked", p.getTitleText());
+        assertTrue(p.getWebResponse().getContentAsString().contains("Message to confirm the click"));
+        // the url is normally the same page so it's ok
+        assertEquals(200, pageAfterClick.getWebResponse().getStatusCode());
+    }
+    
+    private HtmlAnchor getClickableLink(HtmlPage page){
+        DomNodeList<HtmlElement> anchors = page.getElementById("test-panel").getElementsByTagName("a");
+        assertEquals(1, anchors.size());
+        return (HtmlAnchor) anchors.get(0);
+    }
+    
+    @TestExtension("noInjectionArePossible")
+    public static final class TestRootAction implements UnprotectedRootAction {
+        
+        public String paramHref = "";
+        public String paramMessage = "";
+        public String paramClass;
+        public Object paramPost;
+        
+        @Override
+        public @CheckForNull String getIconFileName() {
+            return null;
+        }
+        
+        @Override
+        public @CheckForNull String getDisplayName() {
+            return null;
+        }
+        
+        @Override
+        public String getUrlName() {
+            return "test";
+        }
+        
+        @WebMethod(name = "submit")
+        public HttpResponse doSubmit(StaplerRequest request) {
+            return HttpResponses.plainText("method:" + request.getMethod());
+        }
+    }
+}

@@ -0,0 +1,150 @@
+/*
+ * The MIT License
+ *
+ * Copyright (c) 2018, CloudBees, Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+package lib.layout;
+
+import com.gargoylesoftware.htmlunit.html.DomNodeList;
+import com.gargoylesoftware.htmlunit.html.HtmlAnchor;
+import com.gargoylesoftware.htmlunit.html.HtmlElement;
+import com.gargoylesoftware.htmlunit.html.HtmlElementUtil;
+import com.gargoylesoftware.htmlunit.html.HtmlPage;
+import hudson.model.UnprotectedRootAction;
+import hudson.util.HttpResponses;
+import org.junit.Rule;
+import org.junit.Test;
+import org.jvnet.hudson.test.JenkinsRule;
+import org.jvnet.hudson.test.TestExtension;
+import org.kohsuke.stapler.HttpResponse;
+import org.kohsuke.stapler.StaplerRequest;
+import org.kohsuke.stapler.WebMethod;
+
+import javax.annotation.CheckForNull;
+
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertNotEquals;
+import static org.junit.Assert.assertNotNull;
+import static org.junit.Assert.assertTrue;
+
+public class StopButtonTest {
+    @Rule
+    public JenkinsRule j = new JenkinsRule();
+    
+    private static final String hrefPayload = "\",document.title='hacked',\"";
+    private static final String postPayload = "\",document.title='hacked',\"";
+    
+    @Test
+    public void noInjectionArePossible() throws Exception {
+        TestRootAction testParams = j.jenkins.getExtensionList(UnprotectedRootAction.class).get(TestRootAction.class);
+        assertNotNull(testParams);
+
+        checkRegularCase(testParams);
+        checkInjectionInHref(testParams);
+        checkInjectionInHrefWithConfirm(testParams);
+        checkInjectionInConfirm(testParams);
+    }
+    
+    private void checkRegularCase(TestRootAction testParams) throws Exception {
+        testParams.paramHref = "#";
+        testParams.paramAlt = "Message to confirm the click";
+        testParams.paramConfirm = null;
+        
+        HtmlPage p = j.createWebClient().goTo("test");
+        assertTrue(p.getWebResponse().getContentAsString().contains("Message to confirm the click"));
+    }
+    
+    private void checkInjectionInHref(TestRootAction testParams) throws Exception {
+        testParams.paramHref = hrefPayload;
+        testParams.paramAlt = "Alternative text for icon";
+        testParams.paramConfirm = null;
+        
+        JenkinsRule.WebClient wc = j.createWebClient();
+        wc.getOptions().setThrowExceptionOnFailingStatusCode(false);
+        HtmlPage p = wc.goTo("test");
+    
+        HtmlElementUtil.click(getStopLink(p));
+        assertNotEquals("hacked", p.getTitleText());
+        assertTrue(p.getWebResponse().getContentAsString().contains("Alternative text for icon"));
+    }
+    
+    private void checkInjectionInHrefWithConfirm(TestRootAction testParams) throws Exception {
+        testParams.paramHref = hrefPayload;
+        testParams.paramAlt = "Alternative text for icon";
+        testParams.paramConfirm = "Confirm message";
+        
+        JenkinsRule.WebClient wc = j.createWebClient();
+        wc.getOptions().setThrowExceptionOnFailingStatusCode(false);
+        HtmlPage p = wc.goTo("test");
+    
+        HtmlElementUtil.click(getStopLink(p));
+        assertNotEquals("hacked", p.getTitleText());
+        assertTrue(p.getWebResponse().getContentAsString().contains("Alternative text for icon"));
+    }
+    
+    private void checkInjectionInConfirm(TestRootAction testParams) throws Exception {
+        testParams.paramHref = "#";
+        testParams.paramAlt = "Alternative text for icon";
+        testParams.paramConfirm = postPayload;
+        
+        JenkinsRule.WebClient wc = j.createWebClient();
+        wc.getOptions().setThrowExceptionOnFailingStatusCode(false);
+        HtmlPage p = wc.goTo("test");
+    
+        HtmlElementUtil.click(getStopLink(p));
+        assertNotEquals("hacked", p.getTitleText());
+        assertTrue(p.getWebResponse().getContentAsString().contains("Alternative text for icon"));
+    }
+    
+    private HtmlAnchor getStopLink(HtmlPage page){
+        DomNodeList<HtmlElement> anchors = page.getElementById("test-panel").getElementsByTagName("a");
+        assertEquals(1, anchors.size());
+        return (HtmlAnchor) anchors.get(0);
+    }
+    
+    @TestExtension("noInjectionArePossible")
+    public static class TestRootAction implements UnprotectedRootAction {
+        
+        public String paramHref = "";
+        public String paramAlt = "";
+        public String paramConfirm;
+        
+        @Override
+        public @CheckForNull String getIconFileName() {
+            return null;
+        }
+        
+        @Override
+        public @CheckForNull String getDisplayName() {
+            return null;
+        }
+        
+        @Override
+        public @CheckForNull String getUrlName() {
+            return "test";
+        }
+        
+        @WebMethod(name = "submit")
+        public HttpResponse doSubmit(StaplerRequest request) {
+            return HttpResponses.plainText("method:" + request.getMethod());
+        }
+    }
+}

@@ -0,0 +1,33 @@
+<!--
+The MIT License
+
+Copyright (c) 2018, CloudBees, Inc.
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+THE SOFTWARE.
+-->
+<?jelly escape-by-default='true'?>
+<j:jelly xmlns:j="jelly:core" xmlns:f="/lib/form" xmlns:l="/lib/layout">
+    <l:layout title="Try to inject javascript inside confirmationLink">
+        <l:main-panel>
+            <div id="test-panel">
+                <f:expandableTextbox name="${it.paramName}" />
+            </div>
+        </l:main-panel>
+    </l:layout>
+</j:jelly>
\ No newline at end of file

@@ -0,0 +1,43 @@
+<!--
+The MIT License
+
+Copyright (c) 2018, CloudBees, Inc.
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+THE SOFTWARE.
+-->
+<?jelly escape-by-default='true'?>
+<j:jelly xmlns:j="jelly:core" xmlns:l="/lib/layout" xmlns:f="/lib/form">
+    <l:layout title="Try to inject javascript inside validateButton">
+        <l:main-panel>
+            <div id="test-panel">
+                <f:form method="post" name="config" action="thisFormWillNotBeSubmitted">
+                    <!--<j:set var="instance" value="${it}" />-->
+                    <j:set var="descriptor" value="${it.descriptor}" />
+                    <f:entry title="a title">
+                        <f:textbox name="a" value="avalue" />
+                    </f:entry>
+                    <f:entry title="b title">
+                        <f:textbox name="b" value="bvalue" />
+                    </f:entry>
+                    <f:validateButton title="test" method="${descriptor.paramMethod}" with="${descriptor.paramWith}" />
+                </f:form>
+            </div>
+        </l:main-panel>
+    </l:layout>
+</j:jelly>
\ No newline at end of file

@@ -26,7 +26,7 @@ THE SOFTWARE.
   Config page
 -->
 <?jelly escape-by-default='true'?>
-<j:jelly xmlns:j="jelly:core" xmlns:st="jelly:stapler" xmlns:d="jelly:define" xmlns:l="/lib/layout" xmlns:t="/lib/hudson" xmlns:f="/lib/form">
+<j:jelly xmlns:j="jelly:core" xmlns:l="/lib/layout" xmlns:f="/lib/form">
 <l:layout title="Testing the effect of validateButton">
   <l:main-panel>
     <f:form method="post" name="config" action="thisFormWillNotBeSubmitted">

@@ -0,0 +1,35 @@
+<!--
+The MIT License
+
+Copyright (c) 2018, CloudBees, Inc.
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+THE SOFTWARE.
+-->
+<?jelly escape-by-default='true'?>
+<j:jelly xmlns:j="jelly:core" xmlns:l="/lib/layout">
+    <l:layout title="Try to inject javascript inside confirmationLink">
+        <l:main-panel>
+            <div id="test-panel">
+                <l:confirmationLink href="${it.paramHref}" message="${it.paramMessage}" class="${it.paramClass}" post="${it.paramPost}">
+                    link name
+                </l:confirmationLink>
+            </div>
+        </l:main-panel>
+    </l:layout>
+</j:jelly>
\ No newline at end of file

@@ -0,0 +1,33 @@
+<!--
+The MIT License
+
+Copyright (c) 2018, CloudBees, Inc.
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+THE SOFTWARE.
+-->
+<?jelly escape-by-default='true'?>
+<j:jelly xmlns:j="jelly:core" xmlns:l="/lib/layout">
+    <l:layout title="Try to inject javascript inside stopButton">
+        <l:main-panel>
+            <div id="test-panel">
+                <l:stopButton href="${it.paramHref}" alt="${it.paramAlt}" confirm="${it.paramConfirm}" />
+            </div>
+        </l:main-panel>
+    </l:layout>
+</j:jelly>
\ No newline at end of file