Security researcher sh3n, has submitted on 12/07/2010 a cross-site-scripting (XSS) vulnerability affecting grou.ps, which at the time of submission ranked 16422 on the web according to Alexa.
We manually validated and published a mirror of this vulnerability on 13/01/2012. It is currently unfixed.
If you believe that this security issue has been corrected, please send us an e-mail.