hydeparkdentist.biz XSS vulnerability

hydeparkdentist.biz XSS vulnerability, Open Bug Bounty ID: OBB-659684, affected website, custom code, CVE-79, CVSSv3 Score: 6.1, Coordinated Disclosure based on ISO 29147 guidelines, OWASP XSS Prevention Cheat Sheet, Vulnerable URL: http://hydeparkdentist.biz/search?q=--%3E%27%22/%3E%3Cscript%3Ealert%2831337%29%3C/script%3E&utf8;=, Coordinated Disclosure Timeline, Vulnerability Reported: 6 August, 2018 19:01 GMT, Vulnerability Verified: 6 August, 2018 19:16 GMT, Website Operator Notified: 6 August, 2018 19:16 GMT, Public Report Published[without any technical details]: 6 August, 2018 19:16 GMT, Public Disclosure: 4 November, 2018 19:01 GM