A vulnerability was found in MonoCMS up to 20240528. It has been classified as problematic. Affected is an unknown function of the file /monofiles/account.php of the component Account Information Page. The manipulation of the argument userid 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 vendor was contacted early about this disclosure but did not respond in any way.