fkie_cve-2021-23980
Vulnerability from fkie_nvd
Published
2023-02-16 22:15
Modified
2025-03-19 16:15
Severity ?
6.1 (Medium) - CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
6.1 (Medium) - CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
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.
References
security@mozilla.orghttps://bugzilla.mozilla.org/show_bug.cgi?id=CVE-2021-23980Exploit, Issue Tracking
security@mozilla.orghttps://github.com/mozilla/bleach/security/advisories/GHSA-vv2x-vrpj-qqpqVendor Advisory
af854a3a-2127-422b-91ae-364da2661108https://bugzilla.mozilla.org/show_bug.cgi?id=CVE-2021-23980Exploit, Issue Tracking
af854a3a-2127-422b-91ae-364da2661108https://github.com/mozilla/bleach/security/advisories/GHSA-vv2x-vrpj-qqpqVendor Advisory
Impacted products
Vendor Product Version
mozilla bleach *


To clipboard 

{
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:mozilla:bleach:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "35A5AE32-F1B2-41FC-9F87-1E2445A09966",
              "versionEndExcluding": "3.3.0",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "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."
    },
    {
      "lang": "es",
      "value": "Una mutaci\u00f3n XSS afecta a los usuarios que llaman a bleach.clean con todo: svg o math en las etiquetas permitidas p o br en las etiquetas permitidas estilo, t\u00edtulo, noscript, script, textarea, noframes, iframe o xmp en las etiquetas permitidas el argumento de palabra clave strip_comments= Falso Nota: ninguna de las etiquetas anteriores est\u00e1 en las etiquetas permitidas predeterminadas y strip_comments tiene el valor predeterminado Verdadero."
    }
  ],
  "id": "CVE-2021-23980",
  "lastModified": "2025-03-19T16:15:15.190",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "NONE",
          "baseScore": 6.1,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "LOW",
          "integrityImpact": "LOW",
          "privilegesRequired": "NONE",
          "scope": "CHANGED",
          "userInteraction": "REQUIRED",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N",
          "version": "3.1"
        },
        "exploitabilityScore": 2.8,
        "impactScore": 2.7,
        "source": "nvd@nist.gov",
        "type": "Primary"
      },
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "NONE",
          "baseScore": 6.1,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "LOW",
          "integrityImpact": "LOW",
          "privilegesRequired": "NONE",
          "scope": "CHANGED",
          "userInteraction": "REQUIRED",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N",
          "version": "3.1"
        },
        "exploitabilityScore": 2.8,
        "impactScore": 2.7,
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "type": "Secondary"
      }
    ]
  },
  "published": "2023-02-16T22:15:10.713",
  "references": [
    {
      "source": "security@mozilla.org",
      "tags": [
        "Exploit",
        "Issue Tracking"
      ],
      "url": "https://bugzilla.mozilla.org/show_bug.cgi?id=CVE-2021-23980"
    },
    {
      "source": "security@mozilla.org",
      "tags": [
        "Vendor Advisory"
      ],
      "url": "https://github.com/mozilla/bleach/security/advisories/GHSA-vv2x-vrpj-qqpq"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Exploit",
        "Issue Tracking"
      ],
      "url": "https://bugzilla.mozilla.org/show_bug.cgi?id=CVE-2021-23980"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Vendor Advisory"
      ],
      "url": "https://github.com/mozilla/bleach/security/advisories/GHSA-vv2x-vrpj-qqpq"
    }
  ],
  "sourceIdentifier": "security@mozilla.org",
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-79"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    },
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-79"
        }
      ],
      "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
      "type": "Secondary"
    }
  ]
}


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