From 92b4ffafc336da93f5ecfdef0f76632c33d3139b Mon Sep 17 00:00:00 2001
From: Ryan Boren <ryan@git.wordpress.org>
Date: Sun, 22 May 2011 23:17:09 +0000
Subject: [PATCH] Properly anchor mime preg.

git-svn-id: https://develop.svn.wordpress.org/trunk@17990 602fd350-edb4-49c9-b593-d223f7449a82
---
 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 9c8bd2dde4..28ad0103bf 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;