The 1 Click WordPress Migration Plugin – 100% FREE for a limited time plugin for WordPress is vulnerable to unauthorized modification of data due to a missing capability check on the 'start_restore' function in all versions up to, and including, 2.2. This makes it possible for authenticated attackers, with Subscriber-level access and above, to upload arbitrary files on the affected site's server which may make remote code execution possible.
The product allows the upload or transfer of dangerous file types that are automatically processed within its environment.