rtk.jp XSS vulnerability

Vulnerable URL: http://www.rtk.jp/item.php?itemid="';-- Details: Description| Value ---|--- Patched:| No Latest check for patch:| 21.11.2017 Vulnerability type:| XSS Vulnerability status:| Publicly disclosed Alexa Rank| 2158248 VIP website status:| No Check rtk.jp SSL connection:| Grade: F...