CVE-2019-18213

8.8 highEPSS 2.0%

High (8.8). EPSS 2.0% chance of exploitation in the next 30 days.

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.

Severity

CVSS 3.1

8.8 high

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

EPSS: 2.0% chance of exploitation in the next 30 days; higher than 80% of CVEs (scores of 2026-10-31)
CWE: CWE-611
Published: 2019-10-23
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

eclipse:wild_web_developer
theia_xml_extension_project:theia_xml_extension
xml_language_server_project:xml_server_project

References

https://github.com/angelozerr/lsp4xml/
https://github.com/angelozerr/lsp4xml/blob/master/CHANGELOG.md#others
https://github.com/angelozerr/lsp4xml/pull/566
https://github.com/redhat-developer/vscode-xml/
https://marketplace.visualstudio.com/items?itemName=redhat.vscode-xml

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