The Migration, Backup, Staging – WPvivid plugin for WordPress is vulnerable to arbitrary file uploads due to a missing capability check on the wpvivid_upload_import_files and wpvivid_upload_files AJAX actions that allows low-level authenticated attackers to upload zip files that can be subsequently extracted. This affects versions up to, and including 0.9.35.
The product allows the upload or transfer of dangerous file types that are automatically processed within its environment.