https://cve.radiocsirt.org/rss/recent/all/10 Most recent entries from all 2026-10-09T21:42:51.890962+00:00 Vulnerability-Lookup csirt@opendfir.org python-feedgen Contains only the most 10 recent entries. https://cve.radiocsirt.org/vuln/cve-2026-25543 CVE-2026-25543 — HtmlSanitizer has a bypass via template tag 2026-10-09T21:42:51.907748+00:00

Affected: mganss HtmlSanitizer

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.