From 23ff199c26d9d98ad9d420be1f616130c3fb2599 Mon Sep 17 00:00:00 2001
From: dwoolhead <dwoolhead>
Date: Mon, 27 Nov 2006 16:42:16 +0000
Subject: [PATCH] MDL-7699 Fixed redirect() to ../../

---
 lib/weblib.php | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lib/weblib.php b/lib/weblib.php
index c74f4c4f1f..58803bd257 100644
--- a/lib/weblib.php
+++ b/lib/weblib.php
@@ -4721,7 +4721,7 @@ function redirect($url, $message='', $delay=-1) {
             }
             // Replace all ..s
             while (true) {
-                $newurl = preg_replace('|/[^/]*/\.\./|', '/', $url);
+                $newurl = preg_replace('|/(?!\.\.)[^/]*/\.\./|', '/', $url);
                 if ($newurl == $url) {
                     break;
                 }
-- 
2.39.5