accountsupport.com XSS vulnerability

Vulnerable URL: http://www.accountsupport.com/utils/UnSubscribeMe.bml?Name=as.vinegrapes=CooperVineyardsNewsandEvents=%22%3E%3Cscript%3Ealert%28%27OPENBUGBOUNTY%27%29%3C/script%3E Details: Description| Value ---|--- Patched:| No Latest check for patch:| 26.07.2017 Vulnerability type:| XSS...