Ticket #27387: 27387.patch

src/wp-admin/async-upload.php

@@ -6 +6 @@
  * @subpackage Administration
  */
 
+if ( isset( $_REQUEST['action'] ) && 'upload-attachment' === $_REQUEST['action'] ) {
+        define( 'DOING_AJAX', true );
+}
+
 define('WP_ADMIN', true);
 
 if ( defined('ABSPATH') )
@@ -32 +36 @@
 header('Content-Type: text/html; charset=' . get_option('blog_charset'));
 
 if ( isset( $_REQUEST['action'] ) && 'upload-attachment' === $_REQUEST['action'] ) {
-        define( 'DOING_AJAX', true );
         include ABSPATH . 'wp-admin/includes/ajax-actions.php';
 
         send_nosniff_header();