support.image-line.com XSS vulnerability

support.image-line.com XSS vulnerability. Open Bug Bounty Program: Create your bounty program now. It's open and free. Vulnerable Application: Custom Code. Remediation Guide: OWASP XSS Prevention Cheat Sheet. Vulnerable URL: https://support.image-line.com/jshop/shop.php/"'--!> Coordinated Disclosure Timeline: Vulnerability Reported: 14 November, 2017 20:32 GMT, Vulnerability Verified: 15 November, 2017 08:01 GMT, Website Operator Notified: 15 November, 2017 08:01 GMT, Public Report Published: 15 November, 2017 08:01 GMT, Vulnerability Fixed: 8 August, 2018 11:27 GMT, Public Disclosure: 14 December, 2017 20:32 GM