From 276ea5fcaec2e9fd79a5c1d90ab78104252b35b5 Mon Sep 17 00:00:00 2001
From: Aleksander Machniak <alec@alec.pl>
Date: Thu, 01 Aug 2013 08:54:17 -0400
Subject: [PATCH] Fix XSS vulnerability when editing a message "as new" or draft (#1489251) - added HTML content "washing"

---
 CHANGELOG                      |    1 +
 program/steps/mail/compose.inc |   10 +++++++---
 2 files changed, 8 insertions(+), 3 deletions(-)

diff --git a/CHANGELOG b/CHANGELOG
index 8d163de..1729d36 100644
--- a/CHANGELOG
+++ b/CHANGELOG
@@ -1,6 +1,7 @@
 CHANGELOG Roundcube Webmail
 ===========================
 
+- Fix XSS vulnerability when editing a message "as new" or draft (#1489251)
 - Fix rewrite rule in .htaccess (#1489240)
 - Fix detecting Turkish language in ISO-8859-9 encoding (#1489252)
 - Fix identity-selection using Return-Path headers (#1489241)
diff --git a/program/steps/mail/compose.inc b/program/steps/mail/compose.inc
index 73a7f34..5d588ab 100644
--- a/program/steps/mail/compose.inc
+++ b/program/steps/mail/compose.inc
@@ -980,10 +980,14 @@
       && count($MESSAGE->mime_parts) > 0)
   {
     $cid_map = rcmail_write_compose_attachments($MESSAGE, $bodyIsHtml);
+  }
 
-    // replace cid with href in inline images links
-    if ($cid_map)
-      $body = str_replace(array_keys($cid_map), array_values($cid_map), $body);
+  // clean up html tags - XSS prevention (#1489251)
+  $body = rcmail_wash_html($body, array('safe' => 1), $cid_map);
+
+  // replace cid with href in inline images links
+  if ($cid_map) {
+    $body = str_replace(array_keys($cid_map), array_values($cid_map), $body);
   }
 
   return $body;

--
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