wslny.com XSS vulnerability

Vulnerable URL: http://www.wslny.com/comsite.php?url=http://www.liujo.it/'-alert'OPENBUGBOUNTY'-'=1799 Details: Description| Value ---|--- Patched:| No Latest check for patch:| 12.08.2017 Vulnerability type:| XSS Vulnerability status:| Publicly disclosed Alexa Rank| 886783 VIP website status:| No...