CVEs-PoC/2021/CVE-2021-23980.md

CVE-2021-23980

Description

A mutation XSS affects users calling bleach.clean with all of: svg or math in the allowed tags p or br in allowed tags style, title, noscript, script, textarea, noframes, iframe, or xmp in allowed tags the keyword argument strip_comments=False Note: none of the above tags are in the default allowed tags and strip_comments defaults to True.

POC

Reference

• https://bugzilla.mozilla.org/show_bug.cgi?id=CVE-2021-23980
• https://bugzilla.mozilla.org/show_bug.cgi?id=CVE-2021-23980

Github

No PoCs found on GitHub currently.