[MajorSecurity Advisory #27]ToendaCMS - Cross Site Scripting Issue Details ======= Product: Toenda CMS Affected Version: <=1.0.3(stable) and 1.1 Immune Version: None known Security-Risk: low Remote-Exploit: yes Vendor-URL: http://www.toenda.com/ Vendor-Status: informed Advisory-Status: published Credits ============ Discovered by: David Vieira-Kurz http://www.majorsecurity.de Original Advisory: ============ http://www.majorsecurity.de/index_en2.php?major_rls=major_rls27 Introduction ============ "The toendaCMS Content Management and Weblogging tool gives you a modern, professional publishing system, based on an SQL and/or XML database.." (from Vendor's page) More Details ============ Input passed directly to the "?s" parameter in "/toendaCMS/" is not properly sanitised before being returned to the user. This can be exploited to execute arbitrary HTML and script code in a user's browser session in context of an affected site. It works with a script code like this: >'><script%20%0a%0d>alert(123456789)%3B</script> Fix === None known. Solution ============= Edit the source code to ensure that input is properly sanitised. You should work with "htmlspecialchars()" or "htmlentities()" php-function to ensure that html tags are not going to be executed. Further it is recommend to set off the "register globals" option in the "php.ini" on your webserver. Example: <?php $pass = htmlentities($_POST['pass']); echo htmlspecialchars("<script"); $id = intval($_POST['id']); ?> Set "register_globals" to "Off". History/Timeline ================ 19.07.2006 discovery of the vulnerability 20.07.2006 additional tests with other versions 21.07.2006 contacted Toenda Software Development(vendor) on their own BugTraq. 01.08.2006 after 10 days I got still no response to my advise on their own BugTraq. 02.08.2006 advisory is written 03.08.2006 advisory released MajorSecurity ======= MajorSecurity is a German penetration testing and hacking security project which consists of only one person at the present time. I am looking for a partnership. You can find more Information on the MajorSecurity Project at http://www.majorsecurity.de/