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    CVE-2009-0357

    Mozilla Firefox before 3.0.6 and SeaMonkey before 1.1.15 do not properly restrict access from web pages to the (1) Set-Cookie and (2) Set-Cookie2 HTTP response headers, which allows remote attackers to obtain sensitive information from cookies via XMLHttpRequest calls, related to the HTTPOnly protection mechanism.

    Published:Feb 3, 2009
    Last Modified:Apr 23, 2026
    EPS:Feb 4, 2009
    EPSS Score:0.0108
    CVSS Score:5

    Affected Products

    Vendor
    Mozilla
    Product
    Firefox
    Vendor
    Mozilla
    Product
    Seamonkey
    Vendor
    Redhat
    Product
    Enterprise Linux

    Exploits

    No exploit reference

    Common Weakness Enumeration

    No CWE recorded yet

    Common Attack Pattern Enumeration and Classification (CAPEC)

    No CAPEC recorded yet

    Related CVEs

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    CVE-2026-84143 (CVSS 9.8) — Internally found bugs present in Thunderbird 154, Thunderbird ESR 153.1 and Thunderbird ESR 140.14. Some of th…
    CVE-2026-84142 (CVSS 9.8) — Internally found bugs present in Thunderbird 154. Some of these bugs showed evidence of memory corruption or a…
    CVE-2026-84141 (CVSS 9.8) — Integer overflow in the Graphics: ImageLib component. This vulnerability was fixed in Firefox 155, Firefox ESR…
    CVE-2026-84140 (CVSS 9.8) — Site isolation issue in the DOM: Navigation component. This vulnerability was fixed in Firefox 155, Firefox ES…
    CVE-2026-84139 (CVSS 6.1) — Clickjacking issue in the DOM: Events component. This vulnerability was fixed in Firefox 155, Firefox ESR 153.…
    CVE-2026-84138 (CVSS 6.5) — Denial-of-service in the PDF Viewer component. This vulnerability was fixed in Firefox 155 and Thunderbird 155…
    CVE-2026-84137 (CVSS 4.3) — Spoofing issue in the DOM: Core & HTML component. This vulnerability was fixed in Firefox 155, Firefox ESR 153…
    CVE-2026-84136 (CVSS 6.1) — Other issue in the DOM: Navigation component. This vulnerability was fixed in Firefox 155, Firefox ESR 153.2, …
    CVE-2026-84135 (CVSS 9.8) — Other issue in Firefox Focus for Android. This vulnerability was fixed in Firefox 155.…

    References

    http://ha.ckers.org/blog/20070511/bluehat-errata/
    http://lists.opensuse.org/opensuse-security-announce/2009-02/msg00001.html
    http://rhn.redhat.com/errata/RHSA-2009-0256.html
    http://secunia.com/advisories/33799
    http://secunia.com/advisories/33808
    http://secunia.com/advisories/33809
    http://secunia.com/advisories/33816
    http://secunia.com/advisories/33831
    http://secunia.com/advisories/33841
    http://secunia.com/advisories/33846
    http://secunia.com/advisories/33869
    http://secunia.com/advisories/34462
    http://secunia.com/advisories/34527
    http://slackware.com/security/viewer.php?l=slackware-security&y=2009&m=slackware-security.405420
    http://support.avaya.com/elmodocs2/security/ASA-2009-040.htm
    http://www.mandriva.com/security/advisories?name=MDVSA-2009:044
    http://www.mozilla.org/security/announce/2009/mfsa2009-05.html
    http://www.redhat.com/support/errata/RHSA-2009-0257.html
    http://www.securityfocus.com/bid/33598
    http://www.securitytracker.com/id?1021668
    http://www.ubuntu.com/usn/usn-717-1
    http://www.ubuntu.com/usn/usn-717-2
    http://www.vupen.com/english/advisories/2009/0313
    https://bugzilla.mozilla.org/show_bug.cgi?id=380418
    https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A9459
    https://www.redhat.com/archives/fedora-package-announce/2009-February/msg00240.html
    https://www.redhat.com/archives/fedora-package-announce/2009-March/msg01077.html
    http://ha.ckers.org/blog/20070511/bluehat-errata/
    http://lists.opensuse.org/opensuse-security-announce/2009-02/msg00001.html
    http://rhn.redhat.com/errata/RHSA-2009-0256.html
    http://secunia.com/advisories/33799
    http://secunia.com/advisories/33808
    http://secunia.com/advisories/33809
    http://secunia.com/advisories/33816
    http://secunia.com/advisories/33831
    http://secunia.com/advisories/33841
    http://secunia.com/advisories/33846
    http://secunia.com/advisories/33869
    http://secunia.com/advisories/34462
    http://secunia.com/advisories/34527
    http://slackware.com/security/viewer.php?l=slackware-security&y=2009&m=slackware-security.405420
    http://support.avaya.com/elmodocs2/security/ASA-2009-040.htm
    http://www.mandriva.com/security/advisories?name=MDVSA-2009:044
    http://www.mozilla.org/security/announce/2009/mfsa2009-05.html
    http://www.redhat.com/support/errata/RHSA-2009-0257.html
    http://www.securityfocus.com/bid/33598
    http://www.securitytracker.com/id?1021668
    http://www.ubuntu.com/usn/usn-717-1
    http://www.ubuntu.com/usn/usn-717-2
    http://www.vupen.com/english/advisories/2009/0313
    https://bugzilla.mozilla.org/show_bug.cgi?id=380418
    https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A9459
    https://www.redhat.com/archives/fedora-package-announce/2009-February/msg00240.html
    https://www.redhat.com/archives/fedora-package-announce/2009-March/msg01077.html

    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