From 59523c0dba505d2262182c436402d9f04e67e82d Mon Sep 17 00:00:00 2001
From: Dominik Schilling <dominikschilling+git@gmail.com>
Date: Tue, 2 Feb 2016 13:03:28 +0000
Subject: [PATCH] HTTP: `0.1.2.3` is not a valid IP.

Merges [36435] to the 4.4 branch.
Built from https://develop.svn.wordpress.org/branches/4.4@36436


git-svn-id: http://core.svn.wordpress.org/branches/4.4@36403 1a063a9b-81f0-0310-95a4-ce76da25c4cd
---
 wp-includes/http.php | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/wp-includes/http.php b/wp-includes/http.php
index 8fa00e942f..9f254a15be 100644
--- a/wp-includes/http.php
+++ b/wp-includes/http.php
@@ -536,7 +536,7 @@ function wp_http_validate_url( $url ) {
 		}
 		if ( $ip ) {
 			$parts = array_map( 'intval', explode( '.', $ip ) );
-			if ( 127 === $parts[0] || 10 === $parts[0]
+			if ( 127 === $parts[0] || 10 === $parts[0] || 0 === $parts[0]
 				|| ( 172 === $parts[0] && 16 <= $parts[1] && 31 >= $parts[1] )
 				|| ( 192 === $parts[0] && 168 === $parts[1] )
 			) {