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CVE-2010-1207

Status: ModifiedMedium (4.3)—

Mozilla Firefox before 3.6.7 and Thunderbird before 3.1.1 do not properly implement read restrictions for CANVAS elements, which allows remote attackers to obtain sensitive cross-origin information via vectors involving reference retention and node deletion.

CVSS

Exploitation probability (EPSS)

EPSS (Exploit Prediction Scoring System, FIRST) estimates how likely a vulnerability is to be exploited in the wild within 30 days. It complements CVSS (impact) and CISA KEV (confirmed exploitation).

Affected technologies (2)

Mozilla — FirefoxMozilla — Thunderbird

CWEs

References

Raw JSON (NVD)

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{
  "id": "CVE-2010-1207",
  "cveTags": [],
  "metrics": {
    "cvssMetricV2": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "version": "2.0",
          "baseScore": 4.3,
          "accessVector": "NETWORK",
          "vectorString": "AV:N/AC:M/Au:N/C:P/I:N/A:N",
          "authentication": "NONE",
          "integrityImpact": "NONE",
          "accessComplexity": "MEDIUM",
          "availabilityImpact": "NONE",
          "confidentialityImpact": "PARTIAL"
        },
        "acInsufInfo": false,
        "impactScore": 2.9,
        "baseSeverity": "MEDIUM",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 8.6,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": true
      }
    ]
  },
  "affected": [
    {
      "source": "cve@mitre.org",
      "affectedData": [
        {
          "vendor": "n/a",
          "product": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ]
    }
  ],
  "published": "2010-07-30T20:30:01.347",
  "references": [
    {
      "url": "http://www.mozilla.org/security/announce/2010/mfsa2010-43.html",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "cve@mitre.org"
    },
    {
      "url": "https://bugzilla.mozilla.org/show_bug.cgi?id=571287",
      "source": "cve@mitre.org"
    },
    {
      "url": "https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A11887",
      "source": "cve@mitre.org"
    },
    {
      "url": "http://www.mozilla.org/security/announce/2010/mfsa2010-43.html",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://bugzilla.mozilla.org/show_bug.cgi?id=571287",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A11887",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-264"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "Mozilla Firefox before 3.6.7 and Thunderbird before 3.1.1 do not properly implement read restrictions for CANVAS elements, which allows remote attackers to obtain sensitive cross-origin information via vectors involving reference retention and node deletion."
    },
    {
      "lang": "es",
      "value": "Mozilla Firefox en versiones anteriores a la v3.6.7 y Thunderbird en versiones anteriores a la v3.1.1 no implementan apropiadamente las restricciones de acceso a los elementos CANVAS, lo que permite a atacantes remotos obtener información confidencial fuera de origen a través de vectores de ataque relacionados con la retención de referencias y el borrado de nodos."
    }
  ],
  "lastModified": "2026-06-16T23:17:51.217",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "2365DED1-C3DD-4C9E-8341-0A0ED5A01F2F",
              "versionEndIncluding": "3.6.6"
            },
            {
              "criteria": "cpe:2.3:a:mozilla:firefox:3.6:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "F3782354-7EB7-49D2-B240-1871F6CB84C7"
            },
            {
              "criteria": "cpe:2.3:a:mozilla:firefox:3.6.2:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "30D47263-03AD-4060-91E3-90F997B3D174"
            },
            {
              "criteria": "cpe:2.3:a:mozilla:firefox:3.6.3:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "AFD775DF-277E-4D5B-B980-B8E6E782467D"
            },
            {
              "criteria": "cpe:2.3:a:mozilla:firefox:3.6.4:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "C8587BFD-417D-42BE-A5F8-22FDC68FA9E6"
            },
            {
              "criteria": "cpe:2.3:a:mozilla:thunderbird:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "B53EC475-65DE-4132-A23A-40F9C46B5E96",
              "versionEndIncluding": "3.1"
            }
          ],
          "operator": "OR"
        }
      ]
    }
  ],
  "sourceIdentifier": "cve@mitre.org"
}