pay.efun.com XSS vulnerability

Vulnerable URL: http://pay.efun.com/additionGcacheGame.shtml?pf=idefunsea=23548854=jQuery17064087616500165551507545247124w4q3x%3Cscript%3Ealert/openbugbounty/%3C%2fscript%3Ea7ept&=1507545247228 Details: Description| Value ---|--- Patched:| No Latest check for patch:| 07.01.2018 Vulnerability type...