Unfixed XSS vulnerability at www.holidaycheck.de

Security researcher kInGoFcHaOs, has submitted on 27/06/2008 a cross-site-scripting (XSS) vulnerability affecting www.holidaycheck.de, which at the time of submission ranked 5036 on the web according to Alexa.
We manually validated and published a mirror of this vulnerability on 05/07/2008. It is currently unfixed.
If you believe that this security issue has been corrected, please send us an e-mail.

Vulnerable URL: http://www.holidaycheck.de/reise-Angebote_Lastminute-ch_ra.html?abreise=30.06.2008&rueckreise=27.07.2008&buchungsTyp=<"<<script>alert(document.cookie)</sCrIpT>