The host is installed with Mozilla Firefox before 3.6.28, 4.x through 10.0, Firefox ESR 10.x before 10.0.3, Thunderbird before 3.1.20, 5.0 through 10.0, Thunderbird ESR 10.x before 10.0.3, or SeaMonkey before 2.8 and is prone to a cross site scripting vulnerability. A flaw is present in the applications, which fail to properly restrict drag-and-drop operations on javascript: URLs. Successful explo ...