The Loco Translate WordPress plugin before 2.5.4 mishandles data inputs which get saved to a file, which can be renamed to an extension ending in .php, resulting in authenticated "translator" users being able to inject PHP code into files ending with .php in web accessible locations.
https://wpscan.com/vulnerability/bc7d4774-fce8-4b0b-8015-8ef4c5b02d38