Vulnerability ID: HTB22499 Reference: http://www.htbridge.ch/advisory/xss_vulnerability_in_amethyst.html Product: Amethyst Vendor: Hulihan Applications ( http://hulihanapplications.com/projects/amethyst ) Vulnerable Version: 0.1.5 and Probably Prior Versions Vendor Notification: 22 July 2010 Vulnerability Type: Stored 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 /browse/create_comment script to properly sanitize user-supplied input in "comment[name]" 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. Simple enter a string like 'mynameis<script>alert(document.cookie)</script>' in "Your Name" field of post commenting form, text of comment (like You have some mistakes in your post), fill Captcha and press "Add Comment!" button. Alert will appear when the Administrator will edit the post. Solution: Upgrade to the most recent version
