Bug 2417190 (CVE-2025-66021) - CVE-2025-66021 com.googlecode.owasp-java-html-sanitizer/owasp-java-html-sanitizer: OWASP Java HTML Sanitizer vulnerable to XSS
Summary: CVE-2025-66021 com.googlecode.owasp-java-html-sanitizer/owasp-java-html-sanit...
Keywords:
Status: NEW
Alias: CVE-2025-66021
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
high
high
Target Milestone: ---
Assignee: Product Security DevOps Team
QA Contact:
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2025-11-26 02:01 UTC by OSIDB Bzimport
Modified: 2026-02-18 08:29 UTC (History)
27 users (show)

Fixed In Version:
Clone Of:
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Description OSIDB Bzimport 2025-11-26 02:01:33 UTC 
OWASP Java HTML Sanitizer is a configureable HTML Sanitizer written in Java, allowing inclusion of HTML authored by third-parties in web applications while protecting against XSS. In version 20240325.1,  OWASP java html sanitizer is vulnerable to XSS if HtmlPolicyBuilder allows noscript and style tags with allowTextIn inside the style tag. This could lead to XSS if the payload is crafted in such a way that it does not sanitise the CSS and allows tags which is not mentioned in HTML policy. At time of publication no known patch is available.
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