gamekastle.com XSS vulnerability

Vulnerable URL: http://www.gamekastle.com/account.php?k=3="Please+login+or+Create+New+Account+before+making+reserve+requests. Details: Description| Value ---|--- Patched:| No Latest check for patch:| 21.12.2017 Vulnerability type:| XSS Vulnerability status:| Publicly disclosed Alexa Rank| 994644...