syncplicity.com XSS vulnerability

Vulnerable URL: https://www.syncplicity.com/register/enterprise?regemail=sample%40email.tst®firstname=giolarqq%22%22%3E%3Csvg/onload=prompt/OPENBUGBOUNTY/%3E%22®lastname=vrunjnlx Details: Description| Value ---|--- Patched:| No Latest check for patch:| 06.09.2017 Vulnerability type:| XSS...