A Pakistani Security Researcher " Ali Hasan Ghauri " founder of AHPT has discovered XSS Vulnerability on Filehippo.com , FileHippo is an Internet download website that offers open source, freeware, and shareware programs for Windows. It does not accept user uploaded files.The website also offers its own software, FileHippo Update Checker, a free program that scans a computer and then reports out-dated software in a web-page, offering links to updated versions.
According to Quantcast, FileHippo receives more than three million US visitors each month and Alexa lists FileHippo among the 700 most visited websites worldwide.
Now the proof is here below
In December 2012 the filehippo entire domain was vulnerable so "Ali Hasan Ghauri" reported filehippo team that "filehippo is on big risk about security issues , kindly fix the issue as soon as possible."