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.
| Reporter | Title | Published | Views | Family All 80 |
|---|---|---|---|---|
 | CVE-2021-23980 | 16 Feb 202300:00 | – | alpinelinux |
 | Astra Linux – Vulnerability in python-bleach | 14 Sep 202612:01 | – | astralinux |
 | bleach HTML Cleaning Structure Compromise Data Compromise | 23 Jun 202100:00 | – | bdu_fstec |
 | CVE-2021-23980 | 17 Feb 202300:18 | – | circl |
 | Python Bleach cross-site scripting vulnerability | 6 Apr 202100:00 | – | cnnvd |
 | CVE-2021-23980 | 16 Feb 202300:00 | – | cve |
 | CVE-2021-23980 | 16 Feb 202300:00 | – | cvelist |
 | [SECURITY] [DLA 2620-1] python-bleach security update | 6 Apr 202112:22 | – | debian |
| [SECURITY] [DSA 4892-1] python-bleach security update | 18 Apr 202114:41 | – | debian |
| [SECURITY] [DSA 4892-1] python-bleach security update | 18 Apr 202114:41 | – | debian |
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03 Sep 2025 21:19Current
7.7High risk
Vulners AI Score7.7
CVSS 3.16.1
EPSS0.00483
SSVC