The host is installed with Mozilla Firefox before 15.0, Firefox ESR 10.x before 10.0.7, Thunderbird before 15.0, Thunderbird ESR 10.x before 10.0.7, and SeaMonkey before 2.12 and is prone to a security bypass vulnerability. A flaw is present in the applications, which fail to properly follow the security model of the location object. Successful exploitation could allow attackers to bypass intended content-loading restrictions or possibly have unspecified other impact.