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.
CVE-2019-18213
Score 8.8 from GitHub Security Advisory (severity: HIGH) published 2022-05-24. NVD baseline CVSS 8.8; sources differ by 0.0.
- High severity, but no confirmed exploitation yet
No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.
- CVSS v3
- 8.8
- EG Score
- 8.8(medium)
- EPSS
- 78.2%
- KEV
- Not listed
Published
October 23, 2019
Last Modified
November 21, 2024
References (12)
- cve@mitrehttps://github.com/angelozerr/lsp4xml/
- cve@mitrehttps://github.com/angelozerr/lsp4xml/blob/master/CHANGELOG.md#others
- cve@mitrehttps://github.com/angelozerr/lsp4xml/pull/566
- cve@mitrehttps://github.com/redhat-developer/vscode-xml/
- cve@mitrehttps://marketplace.visualstudio.com/items?itemName=redhat.vscode-xml
- cve@mitrehttps://www.shielder.it/blog/dont-open-that-xml-xxe-to-rce-in-xml-plugins-for-vs-code-eclipse-theia/
- af854a3a-2127-422b-91ae-364da2661108https://github.com/angelozerr/lsp4xml/
- af854a3a-2127-422b-91ae-364da2661108https://github.com/angelozerr/lsp4xml/blob/master/CHANGELOG.md#others
- af854a3a-2127-422b-91ae-364da2661108https://github.com/angelozerr/lsp4xml/pull/566
- af854a3a-2127-422b-91ae-364da2661108https://github.com/redhat-developer/vscode-xml/
- af854a3a-2127-422b-91ae-364da2661108https://marketplace.visualstudio.com/items?itemName=redhat.vscode-xml
- af854a3a-2127-422b-91ae-364da2661108https://www.shielder.it/blog/dont-open-that-xml-xxe-to-rce-in-xml-plugins-for-vs-code-eclipse-theia/
Weakness Classification(2)
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
Data Freshness Timeline
(refreshed 9× in last 7d / 39× in last 30d)
Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.
- 2026-07-11 08:24 UTCEPSS rescore
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- 2026-06-14 15:43 UTCOSV refresh
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- 2026-05-27 12:35 UTCEG score recompute
- 2026-05-27 12:35 UTCGHSA enrichment
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- 2026-05-25 03:19 UTCOSV refresh
Related CVEs(same CWE)
Same CWE
10 shownCWE-611 · CWE-91
Frequently asked(5)
What is CVE-2019-18213?
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What is the CVSS score of CVE-2019-18213?
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Dependency Blast Radius
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