The FileOrganizer WordPress plugin before 1.1.9, Advanced File Manager WordPress plugin before 5.4.12, File Manager Pro WordPress plugin before 2.1.1, File Manager WordPress plugin before 8.0.4 do not properly escape a parameter before passing it to a shell command when processing image operations, allowing authenticated users to perform OS Command Injection. This requires the server to have the ImageMagick convert CLI available without either the PHP imagick or GD extensions.