The host is missing a security update according to Mozilla advisory, MFSA 2012-82. The update is required to fix a cross-site scripting vulnerability. A flaw is present in the applications, which fail to properly handle binary plugin that uses Object.defineProperty to shadow the top object, and leverages the relationship between top.location and the location property. Successful exploitation could allow attackers to conduct cross-site scripting (XSS) attacks.