Cross-site request forgery (CSRF) vulnerability in Mozilla Firefox before 3.5.17 and 3.6.x before 3.6.14, and SeaMonkey before 2.0.12, allows remote attackers to hijack the authentication of arbitrary users for requests that were initiated by a plugin and received a 307 redirect to a page on a different web site.
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A14473
https://bugzilla.mozilla.org/show_bug.cgi?id=573873
http://www.securityfocus.com/bid/46652
http://www.redhat.com/support/errata/RHSA-2011-0313.html
http://www.mozilla.org/security/announce/2011/mfsa2011-10.html
http://www.mandriva.com/security/advisories?name=MDVSA-2011:041