CVE Intelligence

Htmlsanitizer Project Htmlsanitizer vulnerabilities

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Published CVEs affecting Htmlsanitizer Project Htmlsanitizer: 1 record(s), with affected versions and fixes.
cpe:2.3:a:htmlsanitizer_project:htmlsanitizer

CVE-2026-25543 Medium · 6.1 CWE-79 Feb 4, 2026
HtmlSanitizer has a bypass via template tag
HtmlSanitizer is a .NET library for cleaning HTML fragments and documents from constructs that can lead to XSS attacks. Prior to versions 9.0.892 and 9.1.893-beta, if the template tag is allowed, its contents are not sanitized. The template tag is a special tag that does not usually render its contents, unless the shadowrootmode attribute is set to open or closed. This issue has been patched in versions 9.0.892 and 9.1.893-beta.