baltic-it TOPqw Webportal v1.35.283.2 is vulnerable to Incorrect Access Control in the User Management function in /Apps/TOPqw/BenutzerManagement.aspx. This allows a low privileged user to access all modules in the web portal, view and manipulate information and permissions of other users, lock other user or unlock the own account, change the password of other users, create new users or delete existing users and view, manipulate and delete reference data.