A cross-site scripting (XSS) vulnerability in the Admin Control Panel of vBulletin 5.7.5 and 6.0.0 allows attackers to execute arbitrary web scripts or HTML via the /login.php?do=login url parameter.
https://gist.github.com/GiongfNef/8fe658dce4c7fcf3a7b4e6387e50141c