keerti1924 PHP-MYSQL-User-Login-System signup.php cross site scripting

A vulnerability, which was classified as problematic, was found in keerti1924 PHP-MYSQL-User-Login-System 1.0. Affected is an unknown function of the file /signup.php. The manipulation of the argument username with the input <script>alert("xss")</script> leads to cross site scripting. It is possible to launch the attack remotely. The exploit has been disclosed to the public and may be used. The identifier of this vulnerability is VDB-254388. NOTE: The vendor was contacted early about this disclosure but did not respond in any way.