Mozilla Firefox 4.x through 9.0, Thunderbird 5.0 through 9.0, and SeaMonkey before 2.7 allow remote attackers to bypass the HTML5 frame-navigation policy and replace arbitrary sub-frames by creating a form submission target with a sub-frame's name attribute.
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A14907
https://exchange.xforce.ibmcloud.com/vulnerabilities/72835
https://bugzilla.mozilla.org/show_bug.cgi?id=701071
http://www.securityfocus.com/bid/51765
http://www.mozilla.org/security/announce/2012/mfsa2012-03.html
http://www.mandriva.com/security/advisories?name=MDVSA-2012:013
http://secunia.com/advisories/49055
http://lists.opensuse.org/opensuse-security-announce/2012-02/msg00011.html