Pings/trackbacks: Apply KSES to all trackbacks.

Props dd32, xknown, martinkrcho, peterwilsoncc.


git-svn-id: https://develop.svn.wordpress.org/trunk@54525 602fd350-edb4-49c9-b593-d223f7449a82

src/wp-trackback.php

@@ -13,6 +13,9 @@ if ( empty( $wp ) ) {
 	wp( array( 'tb' => '1' ) );
 }
 
+// Always run as an unauthenticated user.
+wp_set_current_user( 0 );
+
 /**
  * Response to a trackback.
  *