CWE-80
Improper Neutralization of Script-Related HTML Tags in a Web Page (Basic XSS)
VariantIncompleteLikelihood: High
Description
The product receives input from an upstream component, but it does not neutralize or incorrectly neutralizes special characters such as "<", ">", and "&" that could be interpreted as web-scripting elements when they are sent to a downstream component that processes web pages.
Hierarchy (View 1000)
Parents
Children
none
Related attack patterns (CAPEC)
CAPEC-18 · CAPEC-193 · CAPEC-32 · CAPEC-86
CVEs mapped to this weakness (163)
page 4 of 9| CVE | Sev | Risk | CVSS | EPSS | KEV | Published | Description |
|---|---|---|---|---|---|---|---|
| CVE-2026-42030 | Med | 0.40 | 6.1 | 0.00 | May 8, 2026 | MapServer is a system for developing web-based GIS applications. From version 6.0 to before version 8.6.2, a reflected XSS vulnerability in MapServer's WMS server allows an unauthenticated attacker to inject arbitrary HTML/JavaScript into the browser of any user who opens a crafted WMS URL. The vulnerability is triggered via FORMAT=application/openlayers combined with an unsanitized SRS parameter in WMS 1.3.0 requests. This issue has been patched in version 8.6.2. | |
| CVE-2026-41575 | Med | 0.40 | 6.1 | 0.00 | May 8, 2026 | In th30d4y/IP from version 1.0.1 to before version 2.0.1, a DOM-Based Cross-Site Scripting (XSS) vulnerability was identified in an IP Reputation Checker application. Unsanitized user input was directly rendered in the browser, allowing attackers to execute arbitrary JavaScript. This issue has been patched in version 2.0.1. | |
| CVE-2026-20170 | Med | 0.40 | 6.1 | 0.00 | Apr 15, 2026 | A vulnerability in the Desktop Agent functionality of Cisco Webex Contact Center could have allowed an unauthenticated, remote attacker to conduct cross-site scripting attacks. Cisco has addressed this vulnerability in the Cisco Webex Contact Center service, and no customer action is needed. This vulnerability existed because HTML and script content was not properly handled. Prior to this vulnerability being addressed, an attacker could have exploited this vulnerability by persuading a user to follow a malicious link. A successful exploit could have allowed the attacker to steal sensitive information from the browser, including authentication and session information. | |
| CVE-2026-26460 | Med | 0.40 | 6.1 | 0.00 | Apr 13, 2026 | A HTML Injection vulnerability exists in the Dashboard module of Vtiger CRM 8.4.0. The application fails to properly neutralize user-supplied input in the tabid parameter of the DashBoardTab view (getTabContents action), allowing an attacker to inject arbitrary HTML content into the dashboard interface. The injected content is rendered in the victim's browser | |
| CVE-2026-39941 | Med | 0.40 | 6.1 | 0.00 | Apr 9, 2026 | ChurchCRM is an open-source church management system. Prior to 7.1.0, an XSS vulnerability allows attacker-supplied input sent via a the EName and EDesc parameters in EditEventAttendees.php to be rendered in a page without proper output encoding, enabling arbitrary JavaScript execution in victims' browsers. This vulnerability is fixed in 7.1.0. | |
| CVE-2026-34718 | Med | 0.40 | 6.1 | 0.00 | Apr 8, 2026 | Zammad is a web based open source helpdesk/customer support system. Prior to 7.0.1 and 6.5.4, the HTML sanitizer for ticket articles was missing proper sanitization of data: ... URI schemes, resulting in storing such malicious content in the database of the Zammad instance. The Zammad GUI is rendering this content, due to applied CSP rules no harm was done by e.g., clicking such a link. This vulnerability is fixed in 7.0.1 and 6.5.4. | |
| CVE-2026-39841 | Med | 0.40 | 6.1 | 0.00 | Apr 7, 2026 | Improper neutralization of Script-Related HTML tags in a web page (basic XSS) vulnerability in Wikimedia Foundation Mediawiki - Cargo Extension allows Stored XSS.This issue affects Mediawiki - Cargo Extension: before 3.8.7. | |
| CVE-2026-39839 | Med | 0.40 | 6.1 | 0.00 | Apr 7, 2026 | Improper neutralization of Script-Related HTML tags in a web page (basic XSS) vulnerability in Wikimedia Foundation Mediawiki - Cargo Extension allows Stored XSS.This issue affects Mediawiki - Cargo Extension: before 3.8.7. | |
| CVE-2026-20070 | Med | 0.40 | 6.1 | 0.00 | Mar 4, 2026 | A vulnerability in the VPN web services component of Cisco Secure Firewall Adaptive Security Appliance (ASA) Software and Cisco Secure Firewall Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to conduct a cross-site scripting (XSS) attack against a browser that is accessing an affected device. This vulnerability is due to improper validation of user-supplied input in HTTP requests. An attacker could exploit this vulnerability by persuading a user to follow a link to a malicious website that is designed to submit malicious input to the affected application. A successful exploit could allow the attacker to execute arbitrary HTML or script code in the browser in the context of the VPN web server. | |
| CVE-2025-11992 | Med | 0.40 | 6.1 | 0.00 | Oct 24, 2025 | The Multi Item Responsive Slider plugin for WordPress is vulnerable to Cross-Site Request Forgery in all versions up to, and including, 1.0. This is due to missing or incorrect nonce validation on the 'mioptions.php' page. This makes it possible for unauthenticated attackers to update settings and inject malicious web scripts via a forged request granted they can trick a site administrator into performing an action such as clicking on a link. | |
| CVE-2024-12127 | Med | 0.40 | 6.1 | 0.03 | Dec 17, 2024 | The Learning Management System, eLearning, Course Builder, WordPress LMS Plugin – Sikshya LMS plugin for WordPress is vulnerable to Reflected Cross-Site Scripting via the ‘page’ parameter in all versions up to, and including, 0.0.21 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that execute if they can successfully trick a user into performing an action such as clicking on a link. | |
| CVE-2024-10038 | Med | 0.40 | 6.1 | 0.00 | Nov 13, 2024 | The WP-Strava plugin for WordPress is vulnerable to Stored Cross-Site Scripting via admin settings in all versions up to, and including, 2.12.1 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with administrator-level permissions and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. This only affects multi-site installations and installations where unfiltered_html has been disabled. | |
| CVE-2024-9438 | Med | 0.40 | 6.1 | 0.03 | Oct 29, 2024 | The SEUR Oficial plugin for WordPress is vulnerable to Reflected Cross-Site Scripting via the 'change_service' parameter in all versions up to, and including, 2.2.11 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that execute if they can successfully trick a user into performing an action such as clicking on a link. | |
| CVE-2006-0149 | Med | 0.40 | 6.1 | 0.00 | Jan 9, 2006 | Cross-site scripting (XSS) vulnerability in SimpBook 1.0, with html_enable on (the default), allows remote attackers to inject arbitrary web script or HTML via the message field. | |
| CVE-2025-55291 | Hig | 0.39 | 7.1 | 0.00 | Aug 18, 2025 | Shaarli is a minimalist bookmark manager and link sharing service. Prior to 0.15.0, the input string in the cloud tag page is not properly sanitized. This allows the </title> tag to be prematurely closed, leading to a reflected Cross-Site Scripting (XSS) vulnerability. This vulnerability is fixed in 0.15.0. | |
| CVE-2025-62796 | Med | 0.38 | 5.8 | 0.00 | Oct 28, 2025 | PrivateBin is an online pastebin where the server has zero knowledge of pasted data. Versions 1.7.7 through 2.0.1 allow persistent HTML injection via the unsanitized attachment filename (attachment_name) when attachments are enabled. An attacker can modify attachment_name before encryption so that, after decryption, arbitrary HTML is inserted unescaped into the page near the file size hint, enabling redirect (e.g., meta refresh) and site defacement and related phishing attacks. Script execution is normally blocked by the recommended Content Security Policy, limiting confidentiality impact. The issue was introduced in 1.7.7 and fixed in 2.0.2. Update to 2.0.2 or later. Workarounds include enforcing the recommended CSP, deploying PrivateBin on a separate domain, or disabling attachments. | |
| CVE-2025-31575 | Med | 0.38 | 5.9 | 0.00 | Mar 31, 2025 | Improper Neutralization of Script-Related HTML Tags in a Web Page (Basic XSS) vulnerability in Vasilis Triantafyllou Flag Icons language-icons-flags-switcher allows Stored XSS.This issue affects Flag Icons: from n/a through <= 2.2. | |
| CVE-2021-47948 | Med | 0.35 | 5.4 | 0.00 | May 10, 2026 | WordPress GetPaid Plugin 2.4.6 contains an HTML injection vulnerability that allows authenticated attackers to inject arbitrary HTML code by exploiting the Help Text field in payment forms. Attackers can inject malicious HTML including image tags and scripts into the Help Text field during payment form creation, which gets stored in the database and executed in the browser when the form is viewed. | |
| CVE-2026-39425 | Med | 0.35 | 5.4 | 0.00 | Apr 14, 2026 | MaxKB is an open-source AI assistant for enterprise. Versions 2.7.1 and below contain a Stored Cross-Site Scripting (XSS) vulnerability that allows authenticated users to inject arbitrary HTML and JavaScript into the Application prologue (Opening Remarks) field by wrapping malicious payloads in <html_rander> tags. The backend fails to sanitize or encode HTML entities in the prologue field when applications are created or updated via the /admin/api/workspace/{workspace_id}/application endpoint, storing the raw payload directly in the database. The frontend then renders this content using an innerHTML-equivalent mechanism, trusting <html_rander>-wrapped content to be safe, which enables persistent DOM-based Stored XSS execution against any visitor who opens the affected chatbot interface. Exploitation can lead to session hijacking, unauthorized actions performed on behalf of victims (such as deleting workspaces or applications), and sensitive data exposure. This issue has been fixed in version 2.8.0. | |
| CVE-2026-39837 | Med | 0.35 | 5.4 | 0.00 | Apr 7, 2026 | Improper neutralization of Script-Related HTML tags in a web page (basic XSS) vulnerability in WikiWorks Mediawiki - Cargo Extension allows Stored XSS.This issue affects Mediawiki - Cargo Extension: before 3.8.7. |