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    CVE-2012-4193

    Mozilla Firefox before 16.0.1, Firefox ESR 10.x before 10.0.9, Thunderbird before 16.0.1, Thunderbird ESR 10.x before 10.0.9, and SeaMonkey before 2.13.1 omit a security check in the defaultValue function during the unwrapping of security wrappers, which allows remote attackers to bypass the Same Origin Policy and read the properties of a Location object, or execute arbitrary JavaScript code, via a crafted web site.

    Published:Oct 11, 2012
    Last Modified:Apr 11, 2025
    EPS:Oct 12, 2012
    EPSS Score:0.01406
    CVSS Score:6.8

    Affected Products

    Vendor
    Canonical
    Product
    Ubuntu Linux
    Vendor
    Mozilla
    Product
    Firefox
    Vendor
    Mozilla
    Product
    Seamonkey
    Vendor
    Mozilla
    Product
    Thunderbird
    Vendor
    Mozilla
    Product
    Thunderbird Esr
    Vendor
    Redhat
    Product
    Enterprise Linux
    Vendor
    Redhat
    Product
    Enterprise Linux Desktop
    Vendor
    Redhat
    Product
    Enterprise Linux Eus
    Vendor
    Redhat
    Product
    Enterprise Linux Server
    Vendor
    Redhat
    Product
    Enterprise Linux Workstation
    Vendor
    Suse
    Product
    Linux Enterprise Desktop
    Vendor
    Suse
    Product
    Linux Enterprise Server
    Vendor
    Suse
    Product
    Linux Enterprise Software Development Kit

    Exploits

    https://bugzilla.mozilla.org/show_bug.cgi?id=720619https://bugzilla.mozilla.org/show_bug.cgi?id=720619

    Common Weakness Enumeration

    CWE-346 Origin Validation Error

    Related CVEs

    CVE-2026-13476 (CVSS 7.3) — IBM Informix Dynamic Server 14.10, 15.0, and 12.10 could allow an unauthenticated user to execute arbitrary co…
    CVE-2026-13367 (CVSS 7.8) — IBM Informix Dynamic Server 14.10, and 15.0 contain a local privilege escalation vulnerability in the oninit s…
    CVE-2026-47337 (CVSS 3.3) — Ubuntu Linux 6.8, 6.17 and 7.0 contain SAUCE patches with a possible NULL pointer dereference in the handling …
    CVE-2026-47336 (CVSS 3.3) — Ubuntu Linux 6.8 contains SAUCE patches with a possible use of an uninitialized variable in AppArmor AF_INET/A…
    CVE-2026-47335 (CVSS 5.5) — Ubuntu Linux 6.8 contains SAUCE patches with a possible NULL pointer dereference in the handling of AppArmor n…
    CVE-2026-47334 (CVSS 5.5) — Ubuntu Linux 6.8, 6.17 and 7.0 contain AppArmor SAUCE patches which incorrectly sleep while holding a spinlock…
    CVE-2026-47333 (CVSS 7.8) — Ubuntu Linux 6.8, 6.17 and 7.0 contain AppArmor SAUCE patches which can potentially incorrectly compute the si…
    CVE-2026-47332 (CVSS 5.5) — Ubuntu Linux 6.8, 6.17 and 7.0 contain AppArmor SAUCE patches which incorrectly validate the size of an intern…
    CVE-2026-47331 (CVSS 7.8) — Ubuntu Linux 6.8 contains AppArmor SAUCE patches which fail to acquire a lock when modifying a linked list. An…
    CVE-2026-47330 (CVSS 3.3) — Ubuntu Linux 6.8, 7.17 and 7.0 contain AppArmor SAUCE patches which can, under certain circumstances, use an u…

    References

    http://lists.opensuse.org/opensuse-security-announce/2012-10/msg00010.html
    http://rhn.redhat.com/errata/RHSA-2012-1361.html
    http://rhn.redhat.com/errata/RHSA-2012-1362.html
    http://secunia.com/advisories/50904
    http://secunia.com/advisories/50906
    http://secunia.com/advisories/50907
    http://secunia.com/advisories/50964
    http://secunia.com/advisories/50984
    http://secunia.com/advisories/55318
    http://www.mozilla.org/security/announce/2012/mfsa2012-89.html
    http://www.ubuntu.com/usn/USN-1611-1
    https://bugzilla.mozilla.org/show_bug.cgi?id=720619
    https://exchange.xforce.ibmcloud.com/vulnerabilities/79211
    https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A16786
    http://lists.opensuse.org/opensuse-security-announce/2012-10/msg00010.html
    http://rhn.redhat.com/errata/RHSA-2012-1361.html
    http://rhn.redhat.com/errata/RHSA-2012-1362.html
    http://secunia.com/advisories/50904
    http://secunia.com/advisories/50906
    http://secunia.com/advisories/50907
    http://secunia.com/advisories/50964
    http://secunia.com/advisories/50984
    http://secunia.com/advisories/55318
    http://www.mozilla.org/security/announce/2012/mfsa2012-89.html
    http://www.ubuntu.com/usn/USN-1611-1
    https://bugzilla.mozilla.org/show_bug.cgi?id=720619
    https://exchange.xforce.ibmcloud.com/vulnerabilities/79211
    https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A16786

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High