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.
blogs.sun.com/security/entry/multiple_vulnerabilities_in_mozilla_firefox
lists.fedoraproject.org/pipermail/package-announce/2010-September/047282.html
lists.opensuse.org/opensuse-security-announce/2010-10/msg00002.html
secunia.com/advisories/42867
support.avaya.com/css/P8/documents/100110210
support.avaya.com/css/P8/documents/100112690
www.debian.org/security/2010/dsa-2106
www.mandriva.com/security/advisories?name=MDVSA-2010:173
www.mozilla.org/security/announce/2010/mfsa2010-61.html
www.securityfocus.com/bid/43101
www.vupen.com/english/advisories/2010/2323
www.vupen.com/english/advisories/2011/0061
bugzilla.mozilla.org/show_bug.cgi?id=579744
oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A11735