Skip to content
Sign in
6.1 Medium

CVE-2021-23980 A mutation XSS affects users calling bleach.clean with all of: svg or math in the allowed tags p or br in allowed tags…

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.

Affected products and versions

Product Affected versions Fixed in
Mozilla Bleach 3.3 earliest → < 3.3.0 3.3.0

Other CVEs of Mozilla Bleach

The 2 CVEs of Mozilla Bleach →
CVE-2020-6817 bleach.clean behavior parsing style attributes could result in a regular expression denial of service (ReDoS) 7.5 High
Track this CVE