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    CVE-2008-2800

    Mozilla Firefox before 2.0.0.15 and SeaMonkey before 1.1.10 allow remote attackers to bypass the Same Origin Policy and conduct cross-site scripting (XSS) attacks via vectors involving (1) an event handler attached to an outer window, (2) a SCRIPT element in an unloaded document, or (3) the onreadystatechange handler in conjunction with an XMLHttpRequest.

    Published:Jul 2, 2008
    Last Modified:Apr 23, 2026
    EPS:Jul 7, 2008
    EPSS Score:0.02008
    CVSS Score:4.3

    Affected Products

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

    Exploits

    No exploit reference

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    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…
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    References

    http://lists.opensuse.org/opensuse-security-announce/2008-07/msg00004.html
    http://rhn.redhat.com/errata/RHSA-2008-0616.html
    http://secunia.com/advisories/30878
    http://secunia.com/advisories/30898
    http://secunia.com/advisories/30903
    http://secunia.com/advisories/30911
    http://secunia.com/advisories/30949
    http://secunia.com/advisories/31005
    http://secunia.com/advisories/31008
    http://secunia.com/advisories/31021
    http://secunia.com/advisories/31023
    http://secunia.com/advisories/31069
    http://secunia.com/advisories/31076
    http://secunia.com/advisories/31183
    http://secunia.com/advisories/31195
    http://secunia.com/advisories/31377
    http://secunia.com/advisories/33433
    http://secunia.com/advisories/34501
    http://security.gentoo.org/glsa/glsa-200808-03.xml
    http://slackware.com/security/viewer.php?l=slackware-security&y=2008&m=slackware-security.383152
    http://slackware.com/security/viewer.php?l=slackware-security&y=2008&m=slackware-security.384911
    http://sunsolve.sun.com/search/document.do?assetkey=1-26-256408-1
    http://wiki.rpath.com/Advisories:rPSA-2008-0216
    http://www.debian.org/security/2008/dsa-1607
    http://www.debian.org/security/2008/dsa-1615
    http://www.debian.org/security/2009/dsa-1697
    http://www.mandriva.com/security/advisories?name=MDVSA-2008:136
    http://www.mozilla.org/projects/security/known-vulnerabilities.html#firefox2.0.0.15
    http://www.mozilla.org/security/announce/2008/mfsa2008-22.html
    http://www.redhat.com/support/errata/RHSA-2008-0547.html
    http://www.redhat.com/support/errata/RHSA-2008-0549.html
    http://www.redhat.com/support/errata/RHSA-2008-0569.html
    http://www.securityfocus.com/archive/1/494080/100/0/threaded
    http://www.securityfocus.com/bid/30038
    http://www.securitytracker.com/id?1020419
    http://www.ubuntu.com/usn/usn-619-1
    http://www.vupen.com/english/advisories/2008/1993/references
    http://www.vupen.com/english/advisories/2009/0977
    https://bugzilla.mozilla.org/show_bug.cgi?id=428672
    https://bugzilla.mozilla.org/show_bug.cgi?id=432591
    https://bugzilla.mozilla.org/show_bug.cgi?id=433328
    https://bugzilla.mozilla.org/show_bug.cgi?id=439035
    https://bugzilla.mozilla.org/show_bug.cgi?id=440308
    https://issues.rpath.com/browse/RPL-2646
    https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A9386
    https://www.redhat.com/archives/fedora-package-announce/2008-July/msg00207.html
    https://www.redhat.com/archives/fedora-package-announce/2008-July/msg00288.html
    https://www.redhat.com/archives/fedora-package-announce/2008-July/msg00295.html
    http://lists.opensuse.org/opensuse-security-announce/2008-07/msg00004.html
    http://rhn.redhat.com/errata/RHSA-2008-0616.html
    http://secunia.com/advisories/30878
    http://secunia.com/advisories/30898
    http://secunia.com/advisories/30903
    http://secunia.com/advisories/30911
    http://secunia.com/advisories/30949
    http://secunia.com/advisories/31005
    http://secunia.com/advisories/31008
    http://secunia.com/advisories/31021
    http://secunia.com/advisories/31023
    http://secunia.com/advisories/31069
    http://secunia.com/advisories/31076
    http://secunia.com/advisories/31183
    http://secunia.com/advisories/31195
    http://secunia.com/advisories/31377
    http://secunia.com/advisories/33433
    http://secunia.com/advisories/34501
    http://security.gentoo.org/glsa/glsa-200808-03.xml
    http://slackware.com/security/viewer.php?l=slackware-security&y=2008&m=slackware-security.383152
    http://slackware.com/security/viewer.php?l=slackware-security&y=2008&m=slackware-security.384911
    http://sunsolve.sun.com/search/document.do?assetkey=1-26-256408-1
    http://wiki.rpath.com/Advisories:rPSA-2008-0216
    http://www.debian.org/security/2008/dsa-1607
    http://www.debian.org/security/2008/dsa-1615
    http://www.debian.org/security/2009/dsa-1697
    http://www.mandriva.com/security/advisories?name=MDVSA-2008:136
    http://www.mozilla.org/projects/security/known-vulnerabilities.html#firefox2.0.0.15
    http://www.mozilla.org/security/announce/2008/mfsa2008-22.html
    http://www.redhat.com/support/errata/RHSA-2008-0547.html
    http://www.redhat.com/support/errata/RHSA-2008-0549.html
    http://www.redhat.com/support/errata/RHSA-2008-0569.html
    http://www.securityfocus.com/archive/1/494080/100/0/threaded
    http://www.securityfocus.com/bid/30038
    http://www.securitytracker.com/id?1020419
    http://www.ubuntu.com/usn/usn-619-1
    http://www.vupen.com/english/advisories/2008/1993/references
    http://www.vupen.com/english/advisories/2009/0977
    https://bugzilla.mozilla.org/show_bug.cgi?id=428672
    https://bugzilla.mozilla.org/show_bug.cgi?id=432591
    https://bugzilla.mozilla.org/show_bug.cgi?id=433328
    https://bugzilla.mozilla.org/show_bug.cgi?id=439035
    https://bugzilla.mozilla.org/show_bug.cgi?id=440308
    https://issues.rpath.com/browse/RPL-2646
    https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A9386
    https://www.redhat.com/archives/fedora-package-announce/2008-July/msg00207.html
    https://www.redhat.com/archives/fedora-package-announce/2008-July/msg00288.html
    https://www.redhat.com/archives/fedora-package-announce/2008-July/msg00295.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