From 6751b328d9daa8f4243c3aaa00fd3b4f4c8bda88 Mon Sep 17 00:00:00 2001
From: Aaron Campbell <aaron@xavisys.com>
Date: Mon, 6 Mar 2017 13:43:55 +0000
Subject: [PATCH] Strip control characters before validating redirect.

Merges [40183] to 4.3 branch.

Built from https://develop.svn.wordpress.org/branches/4.3@40188


git-svn-id: http://core.svn.wordpress.org/branches/4.3@40127 1a063a9b-81f0-0310-95a4-ce76da25c4cd
---
 wp-includes/pluggable.php | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/wp-includes/pluggable.php b/wp-includes/pluggable.php
index ac2b88021e..4cd3f9af39 100644
--- a/wp-includes/pluggable.php
+++ b/wp-includes/pluggable.php
@@ -1300,7 +1300,7 @@ if ( !function_exists('wp_validate_redirect') ) :
  * @return string redirect-sanitized URL
  **/
 function wp_validate_redirect($location, $default = '') {
-	$location = trim( $location );
+	$location = trim( $location, " \t\n\r\0\x08\x0B" );
 	// browsers will assume 'http' is your protocol, and will obey a redirect to a URL starting with '//'
 	if ( substr($location, 0, 2) == '//' )
 		$location = 'http:' . $location;