From 569c17df7fedb97262dca9dfed042d37a11f891d Mon Sep 17 00:00:00 2001
From: ryan <ryan@1a063a9b-81f0-0310-95a4-ce76da25c4cd>
Date: Sun, 22 May 2011 23:17:09 +0000
Subject: [PATCH] Properly anchor mime preg.

git-svn-id: http://svn.automattic.com/wordpress/trunk@17990 1a063a9b-81f0-0310-95a4-ce76da25c4cd
---
 wp-includes/formatting.php | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/wp-includes/formatting.php b/wp-includes/formatting.php
index 9c8bd2dde..28ad0103b 100644
--- a/wp-includes/formatting.php
+++ b/wp-includes/formatting.php
@@ -707,7 +707,7 @@ function sanitize_file_name( $filename ) {
 		if ( preg_match("/^[a-zA-Z]{2,5}\d?$/", $part) ) {
 			$allowed = false;
 			foreach ( $mimes as $ext_preg => $mime_match ) {
-				$ext_preg = '!(^' . $ext_preg . ')$!i';
+				$ext_preg = '!^(' . $ext_preg . ')$!i';
 				if ( preg_match( $ext_preg, $part ) ) {
 					$allowed = true;
 					break;