myfivebooks.com XSS vulnerability

Vulnerable URL: http://www.myfivebooks.com/index.php?action=search=1000%27"--!confirmOPENBUGBOUNTY%3C/script /K/=2=wooden box= Details: Description| Value ---|--- Patched:| Yes, at Vulnerability type:| XSS Vulnerability status:| Publicly disclosed Alexa Rank| Unknown / Not calculated VIP website...