letsplaychess.com XSS vulnerability

Vulnerable URL: http://letsplaychess.com/chessclubs/asplogin.asp?USERNAME=' Details: Description| Value ---|--- Patched:| No Latest check for patch:| 27.07.2017 Vulnerability type:| XSS Vulnerability status:| Publicly disclosed Alexa Rank| 158676 VIP website status:| No Check letsplaychess.com SS...