CVE-2012-4193

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.

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.

Mozilla Firefox anteriores a v16.0.1, Firefox ESR v10.x anteriores a v10.0.9, Thunderbird anteriores a v16.0.1, Thunderbird ESR v10.x anteriores a v10.0.9, y SeaMonkey anteriores a v2.13.1 omite un chekeo de seguridad en la función defaultValue durante el desempaqueta de una envoltura de seguridad, lo que permite a atacantes remotos evitar la política "Same Origin Policy" y leer las propiedades del objeto Location, or ejecutar código JavaScript a través de un sitio Web moficado.