Ticket #28077: file_is_displayable_image.diff

wp-admin/includes/image.php

@@ -372 +372 @@
  * @return bool True if suitable, false if not suitable.
  */
 function file_is_displayable_image($path) {
-        $info = @getimagesize($path);
-        if ( empty($info) )
+        $image_type = @exif_imagetype( $path );
+        if ( empty($image_type) )
                 $result = false;
-        elseif ( !in_array($info[2], array(IMAGETYPE_GIF, IMAGETYPE_JPEG, IMAGETYPE_PNG)) )     // only gif, jpeg and png images can reliably be displayed
+        elseif ( !in_array($image_type, array(IMAGETYPE_GIF, IMAGETYPE_JPEG, IMAGETYPE_PNG)) )  // only gif, jpeg and png images can reliably be displayed
                 $result = false;
         else
                 $result = true;