Mozilla Firefox before 16.0.1, Firefox ESR 10.x before 10.0.9, Thunderbird before 16.0.1, Thunderbird ESR 10.x before 10.0.9, and SeaMonkey before 2.13.1 omit a security check in the defaultValue function during the unwrapping of security wrappers, which allows remote attackers to bypass the Same Origin Policy and read the properties of a Location object, or execute arbitrary JavaScript code, via a crafted web site.
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A16786
https://exchange.xforce.ibmcloud.com/vulnerabilities/79211
http://www.ubuntu.com/usn/USN-1611-1
http://www.mozilla.org/security/announce/2012/mfsa2012-89.html
http://secunia.com/advisories/55318
http://secunia.com/advisories/50984
http://secunia.com/advisories/50964
http://secunia.com/advisories/50907
http://secunia.com/advisories/50906
http://secunia.com/advisories/50904
http://rhn.redhat.com/errata/RHSA-2012-1362.html
http://rhn.redhat.com/errata/RHSA-2012-1361.html
http://lists.opensuse.org/opensuse-security-announce/2012-10/msg00010.html