Ticket #14521: 14521.diff

wp-admin/includes/file.php

@@ -315 +315 @@
                         $file['name'] = $proper_filename;
 
                 if ( ( !$type || !$ext ) && !current_user_can( 'unfiltered_upload' ) )
-                        return call_user_func($upload_error_handler, $file, __( 'File type does not meet security guidelines. Try another.' ));
+                        return call_user_func($upload_error_handler, $file, __( 'This file type is not allowed. Try another one or extend the file type whitelist by using a plugin.' ));
 
                 if ( !$ext )
                         $ext = ltrim(strrchr($file['name'], '.'), '.');
@@ -429 +429 @@
                         $file['name'] = $proper_filename;
 
                 if ( ( !$type || !$ext ) && !current_user_can( 'unfiltered_upload' ) )
-                        return $upload_error_handler( $file, __( 'File type does not meet security guidelines. Try another.' ));
+                        return $upload_error_handler( $file, __( 'This file type is not allowed. Try another one or extend the file type whitelist by using a plugin.' ));
 
                 if ( !$ext )
                         $ext = ltrim(strrchr($file['name'], '.'), '.');