From 98c2d69acf3001379dc008dc52b77b618c291140 Mon Sep 17 00:00:00 2001
From: thomascube <thomas@roundcube.net>
Date: Fri, 09 Dec 2011 20:50:03 -0500
Subject: [PATCH] Be more strict in style attribute filtering
---
program/lib/washtml.php | 2 +-
1 files changed, 1 insertions(+), 1 deletions(-)
diff --git a/program/lib/washtml.php b/program/lib/washtml.php
index 8bbc136..f8c3251 100644
--- a/program/lib/washtml.php
+++ b/program/lib/washtml.php
@@ -168,7 +168,7 @@
|| ($src = $this->config['cid_map'][$this->config['base_url'].$match[2]])) {
$value .= ' url('.htmlspecialchars($src, ENT_QUOTES) . ')';
}
- else if (preg_match('/^(http|https|ftp):.*$/i', $match[2], $url)) {
+ else if (preg_match('!^(https?:)?//[a-z0-9/._+-]+$!i', $match[2], $url)) {
if ($this->config['allow_remote'])
$value .= ' url('.htmlspecialchars($url[0], ENT_QUOTES).')';
else
--
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