MEDIUM 6.1
GHSA-v8jm-5vwx-cfxm
DOMPurify contains a Cross-site Scripting vulnerability
Details
DOMPurify 3.1.3 through 3.2.6 and 2.5.3 through 2.5.8 contain a cross-site scripting vulnerability that allows attackers to bypass attribute sanitization by exploiting missing textarea rawtext element validation in the SAFE_FOR_XML regex. Attackers can include closing rawtext tags like </textarea> in attribute values to break out of rawtext contexts and execute JavaScript when sanitized output is placed inside rawtext elements. The 3.x branch was fixed in 3.2.7; the 2.x branch was never patched.
Are you affected?
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Affected packages
npm / dompurify
Introduced in:
2.5.3 No fixed version published yet for dompurify (npm). Pin to a known-safe version or switch to an alternative.
References
- https://nvd.nist.gov/vuln/detail/CVE-2025-15599 [ADVISORY]
- https://github.com/cure53/DOMPurify/commit/c861f5a83fb8d90800f1680f855fee551161ac2b [WEB]
- https://github.com/cure53/DOMPurify [PACKAGE]
- https://www.vulncheck.com/advisories/dompurify-xss-via-textarea-rawtext-bypass-in-safe-for-xml [WEB]
- https://www.vulncheck.com/advisories/dompurify-xss-via-textarea-rawtext-bypass-in-safeforxml [WEB]