Unfixed XSS vulnerability at avalanche.websitewelcome.com

Security researcher lithium9, has submitted on 15/12/2009 a cross-site-scripting XSS vulnerability affecting avalanche.websitewelcome.com, which at the time of submission ranked 2478 on the web according to Alexa. We manually validated and published a mirror of this vulnerability on 07/07/2010. I...