proxfree.com XSS vulnerability

Vulnerable URL: https://www.proxfree.com/error.php?error=invalidurl=javascript:alert/openbugbounty/=4db8adf83f43565e⊂=170540eb Details: Description| Value ---|--- Patched:| No Latest check for patch:| 28.08.2017 Vulnerability type:| XSS Vulnerability status:| Publicly disclosed Alexa Rank| 12665...