zmodules.valsys.ch XSS vulnerability

Vulnerable URL: http://zmodules.valsys.ch/item/item.detail.php?ZSESSIONID=f68m2c81drak7khbu6ltn8s4d4index=100010for=%22%3E%3Cscript%3Ealert%27OPENBUGBOUNTY%27%3C/script%3Eurl=%2Fitem%2Fitem.search.php%3FZSESSIONID%3Df68m2c81drak7khbu6ltn8s4d4%26simplequery%3D4%26page%3D1%23idx100010 Details:...