Unfixed XSS vulnerability at www.checkmessenger3.com

Security researcher FullFreeez, has submitted on 31/08/2007 a cross-site-scripting XSS vulnerability affecting www.checkmessenger3.com, which at the time of submission ranked 5288825 on the web according to Alexa. We manually validated and published a mirror of this vulnerability on 31/08/2007. I...