Security researcher dev0, has submitted on 09/06/2010 a cross-site-scripting (XSS) vulnerability affecting www.telekom.de, which at the time of submission ranked 2268 on the web according to Alexa.
We manually validated and published a mirror of this vulnerability on 24/12/2011. It is currently unfixed.
If you believe that this security issue has been corrected, please send us an e-mail.