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    CVE-2010-2768

    Mozilla Firefox before 3.5.12 and 3.6.x before 3.6.9, Thunderbird before 3.0.7 and 3.1.x before 3.1.3, and SeaMonkey before 2.0.7 do not properly restrict use of the type attribute of an OBJECT element to set a document's charset, which allows remote attackers to bypass cross-site scripting (XSS) protection mechanisms via UTF-7 encoding.

    Published:Sep 7, 2010
    Last Modified:Apr 11, 2025
    EPS:Sep 9, 2010
    EPSS Score:0.01543
    CVSS Score:4.3

    Affected Products

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

    Exploits

    No exploit reference

    Related CVEs

    CVE-2026-84144 (CVSS 7.5) — Internally found bugs present in Thunderbird 154 and Thunderbird ESR 153.1. Some of these bugs showed evidence…
    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://blogs.sun.com/security/entry/multiple_vulnerabilities_in_mozilla_firefox
    http://lists.fedoraproject.org/pipermail/package-announce/2010-September/047282.html
    http://lists.opensuse.org/opensuse-security-announce/2010-10/msg00002.html
    http://secunia.com/advisories/42867
    http://support.avaya.com/css/P8/documents/100110210
    http://support.avaya.com/css/P8/documents/100112690
    http://www.debian.org/security/2010/dsa-2106
    http://www.mandriva.com/security/advisories?name=MDVSA-2010:173
    http://www.mozilla.org/security/announce/2010/mfsa2010-61.html
    http://www.securityfocus.com/bid/43101
    http://www.vupen.com/english/advisories/2010/2323
    http://www.vupen.com/english/advisories/2011/0061
    https://bugzilla.mozilla.org/show_bug.cgi?id=579744
    https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A11735
    http://blogs.sun.com/security/entry/multiple_vulnerabilities_in_mozilla_firefox
    http://lists.fedoraproject.org/pipermail/package-announce/2010-September/047282.html
    http://lists.opensuse.org/opensuse-security-announce/2010-10/msg00002.html
    http://secunia.com/advisories/42867
    http://support.avaya.com/css/P8/documents/100110210
    http://support.avaya.com/css/P8/documents/100112690
    http://www.debian.org/security/2010/dsa-2106
    http://www.mandriva.com/security/advisories?name=MDVSA-2010:173
    http://www.mozilla.org/security/announce/2010/mfsa2010-61.html
    http://www.securityfocus.com/bid/43101
    http://www.vupen.com/english/advisories/2010/2323
    http://www.vupen.com/english/advisories/2011/0061
    https://bugzilla.mozilla.org/show_bug.cgi?id=579744
    https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A11735

    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