CVE-2014-1583

Status: ModifiedMedium (5)—
The Alarm API in Mozilla Firefox before 33.0 and Firefox ESR 31.x before 31.2 does not properly restrict toJSON calls, which allows remote attackers to bypass the Same Origin Policy via crafted API calls that access sensitive information within the JSON data of an alarm.
CVSS

Version: 2.0
Vector: AV:N/AC:L/Au:N/C:P/I:N/A:N
Base score: 5
Exploitation probability (EPSS)

Probability of exploitation in the next 30 days: 2.86%
Percentile among all scored CVEs: 86
Score date: 10/12/2026
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 (1)

Mozilla — Firefox
CWEs

NVD-CWE-Other
References

Raw JSON (NVD)

Show
{
  "id": "CVE-2014-1583",
  "cveTags": [],
  "metrics": {
    "cvssMetricV2": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "version": "2.0",
          "baseScore": 5,
          "accessVector": "NETWORK",
          "vectorString": "AV:N/AC:L/Au:N/C:P/I:N/A:N",
          "authentication": "NONE",
          "integrityImpact": "NONE",
          "accessComplexity": "LOW",
          "availabilityImpact": "NONE",
          "confidentialityImpact": "PARTIAL"
        },
        "acInsufInfo": false,
        "impactScore": 2.9,
        "baseSeverity": "MEDIUM",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 10,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": false
      }
    ]
  },
  "affected": [
    {
      "source": "security@mozilla.org",
      "affectedData": [
        {
          "vendor": "n/a",
          "product": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ]
    }
  ],
  "published": "2014-10-15T10:55:06.943",
  "references": [
    {
      "url": "http://lists.fedoraproject.org/pipermail/package-announce/2014-November/141796.html",
      "source": "security@mozilla.org"
    },
    {
      "url": "http://lists.fedoraproject.org/pipermail/package-announce/2014-October/141085.html",
      "source": "security@mozilla.org"
    },
    {
      "url": "http://lists.opensuse.org/opensuse-updates/2014-11/msg00001.html",
      "source": "security@mozilla.org"
    },
    {
      "url": "http://lists.opensuse.org/opensuse-updates/2014-11/msg00002.html",
      "source": "security@mozilla.org"
    },
    {
      "url": "http://rhn.redhat.com/errata/RHSA-2014-1635.html",
      "source": "security@mozilla.org"
    },
    {
      "url": "http://secunia.com/advisories/61854",
      "source": "security@mozilla.org"
    },
    {
      "url": "http://secunia.com/advisories/62022",
      "source": "security@mozilla.org"
    },
    {
      "url": "http://secunia.com/advisories/62023",
      "source": "security@mozilla.org"
    },
    {
      "url": "http://www.debian.org/security/2014/dsa-3050",
      "source": "security@mozilla.org"
    },
    {
      "url": "http://www.mozilla.org/security/announce/2014/mfsa2014-82.html",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "security@mozilla.org"
    },
    {
      "url": "http://www.oracle.com/technetwork/topics/security/bulletinapr2015-2511959.html",
      "source": "security@mozilla.org"
    },
    {
      "url": "http://www.securityfocus.com/bid/70424",
      "source": "security@mozilla.org"
    },
    {
      "url": "http://www.securitytracker.com/id/1031028",
      "source": "security@mozilla.org"
    },
    {
      "url": "http://www.securitytracker.com/id/1031030",
      "source": "security@mozilla.org"
    },
    {
      "url": "http://www.ubuntu.com/usn/USN-2372-1",
      "source": "security@mozilla.org"
    },
    {
      "url": "https://advisories.mageia.org/MGASA-2014-0421.html",
      "source": "security@mozilla.org"
    },
    {
      "url": "https://bugzilla.mozilla.org/show_bug.cgi?id=1015540",
      "source": "security@mozilla.org"
    },
    {
      "url": "https://security.gentoo.org/glsa/201504-01",
      "source": "security@mozilla.org"
    },
    {
      "url": "http://lists.fedoraproject.org/pipermail/package-announce/2014-November/141796.html",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://lists.fedoraproject.org/pipermail/package-announce/2014-October/141085.html",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://lists.opensuse.org/opensuse-updates/2014-11/msg00001.html",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://lists.opensuse.org/opensuse-updates/2014-11/msg00002.html",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://rhn.redhat.com/errata/RHSA-2014-1635.html",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://secunia.com/advisories/61854",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://secunia.com/advisories/62022",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://secunia.com/advisories/62023",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://www.debian.org/security/2014/dsa-3050",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://www.mozilla.org/security/announce/2014/mfsa2014-82.html",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://www.oracle.com/technetwork/topics/security/bulletinapr2015-2511959.html",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://www.securityfocus.com/bid/70424",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://www.securitytracker.com/id/1031028",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://www.securitytracker.com/id/1031030",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://www.ubuntu.com/usn/USN-2372-1",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://advisories.mageia.org/MGASA-2014-0421.html",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://bugzilla.mozilla.org/show_bug.cgi?id=1015540",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://security.gentoo.org/glsa/201504-01",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "NVD-CWE-Other"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "The Alarm API in Mozilla Firefox before 33.0 and Firefox ESR 31.x before 31.2 does not properly restrict toJSON calls, which allows remote attackers to bypass the Same Origin Policy via crafted API calls that access sensitive information within the JSON data of an alarm."
    },
    {
      "lang": "es",
      "value": "La API Alarm en Mozilla Firefox anterior a 33.0 y Firefox ESR 31.x anterior a 31.2 no restringe debidamente las llamadas JSON, lo que permite a atacantes remotos evadir Same Origin Policy a través de llamadas a la API manipuladas que acceden a información sensible dentro de los datos JSON de una alarma."
    }
  ],
  "lastModified": "2026-06-17T00:05:13.397",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "97A0B769-5287-4E95-874B-F1D7FC41C7AF",
              "versionEndIncluding": "32.0"
            },
            {
              "criteria": "cpe:2.3:a:mozilla:firefox:30.0:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "38EBC9E7-46AD-4DCD-AA7B-5071F55E3755"
            },
            {
              "criteria": "cpe:2.3:a:mozilla:firefox:31.0:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "C11F024A-A8B7-405B-8A13-4BF406FBDB22"
            },
            {
              "criteria": "cpe:2.3:a:mozilla:firefox:31.1.0:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "D81A3698-797C-4CD9-BB02-A9182E0A6E11"
            }
          ],
          "operator": "OR"
        }
      ]
    },
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:mozilla:firefox:31.0:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "C11F024A-A8B7-405B-8A13-4BF406FBDB22"
            },
            {
              "criteria": "cpe:2.3:a:mozilla:firefox:31.1.0:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "D81A3698-797C-4CD9-BB02-A9182E0A6E11"
            }
          ],
          "operator": "OR"
        }
      ]
    }
  ],
  "sourceIdentifier": "security@mozilla.org"
}