The remote web server is hosting a web application that is vulnerable to a cross-site scripting attack.
The remote web server is hosting Mantis, an open source bugtracking application written in PHP. Versions of Mantis 1.2.x are potentially affected by a cross-site scripting vulnerability. The application does not properly validate inline attachments before rendering them. An attacker, exploiting this flaw, could execute arbitrary script code in a users browser.
Upgrade to Mantis 1.2.2 or later.