CVE-2021-23980

Published Feb 16, 2023

Last updated 2 years ago

CVSS medium 6.1

Overview

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.
Source: security@mozilla.org
NVD status: Analyzed

Risk scores

CVSS 3.1

Type: Primary
Base score: 6.1
Impact score: 2.7
Exploitability score: 2.8
Vector string: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Severity: MEDIUM

Weaknesses

nvd@nist.gov: CWE-79

Hype score: Not currently trending

Configurations

[
  {
    "nodes": [
      {
        "negate": false,
        "cpeMatch": [
          {
            "criteria": "cpe:2.3:a:mozilla:bleach:*:*:*:*:*:*:*:*",
            "vulnerable": true,
            "matchCriteriaId": "35A5AE32-F1B2-41FC-9F87-1E2445A09966",
            "versionEndExcluding": "3.3.0"
          }
        ],
        "operator": "OR"
      }
    ]
  }
]

References