An unrestricted file upload vulnerability was discovered in the Microweber 1.1.18 admin account page. An attacker can upload PHP code or any extension (eg- .exe) to the web server by providing image data and the image/jpeg content type with a .php extension.

Microweber 1.1.18 is affected by broken authentication and session management. Local session hijacking may occur, which could result in unauthorized access to system data or functionality, or a complete system compromise.

Microweber 1.1.18 is affected by insufficient session expiration. When changing passwords, both sessions for when a user changes email and old sessions in any other browser or device, the session does not expire and remains active.

Microweber 1.1.18 allows Unrestricted File Upload because admin/view:modules/loadmodule:users#edit-user=1 does not verify that the file extension (used with the Add Image option on the Edit User screen) corresponds to an image file.