Ticket #37989: 37989.4.diff

src/wp-admin/includes/media.php

@@ -278 +278 @@
                         $time = $post->post_date;
         }
 
+        $name = $_FILES[$file_id]['name'];
         $file = wp_handle_upload($_FILES[$file_id], $overrides, $time);
 
         if ( isset($file['error']) )
                 return new WP_Error( 'upload_error', $file['error'] );
 
-        $name = pathinfo( $_FILES[$file_id]['name'], PATHINFO_FILENAME );
+        $ext  = pathinfo( $name, PATHINFO_EXTENSION );
+        $name = wp_basename( $name, ".$ext" );
 
         $url = $file['url'];
         $type = $file['type'];