CVE-2021-23980 (GCVE-0-2021-23980)

Vulnerability from cvelistv5 – Published: 2023-02-16 00:00 – Updated: 2025-03-19 15:18
VLAI
Summary
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.
Severity
6.1 (Medium)
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
SSVC
Exploitation: poc Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-03-19 15:18 UTC
CWE
  • mutation XSS via allowed math or svg; p or br; and style, title, noscript, script, textarea, noframes, iframe, or xmp tags with strip_comments=False
  • CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Assigner
mozilla CNA under the mitre root
CNA scorecard E 38/100 over 674 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
Mozilla Mozilla Bleach Affected: unspecified , < 3.3.0 (custom)
guessed Create a notification for this product.
Show details on NVD website
To clipboard 

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