CVE-2021-23980 Information

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.

Reference

https://bugzilla.mozilla.org/show_bug.cgi?id=CVE-2021-23980 https://github.com/mozilla/bleach/security/advisories/GHSA-vv2x-vrpj-qqpq