High severity8.8NVD Advisory· Published Oct 23, 2019· Updated Jun 17, 2026
CVE-2019-18213
CVE-2019-18213
Description
XML Language Server (aka lsp4xml) before 0.9.1, as used in Red Hat XML Language Support (aka vscode-xml) before 0.9.1 for Visual Studio and other products, allows XXE via a crafted XML document, with resultant SSRF (as well as SMB connection initiation that can lead to NetNTLM challenge/response capture for password cracking). This occurs in extensions/contentmodel/participants/diagnostics/LSPXMLParserConfiguration.java.
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Affected products
3- XML Language Server/XML Language Serverdescription
- Range: <0.9.1
- Range: <0.9.1
Patches
Vulnerability mechanics
References
4- github.com/angelozerr/lsp4xml/pull/566nvdPatchThird Party Advisory
- www.shielder.it/blog/dont-open-that-xml-xxe-to-rce-in-xml-plugins-for-vs-code-eclipse-theia/nvdExploitThird Party Advisory
- github.com/angelozerr/lsp4xml/blob/master/CHANGELOG.mdnvdRelease NotesThird Party Advisory
- marketplace.visualstudio.com/itemsnvdThird Party Advisory
News mentions
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