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Amethyst XSS vulnerability



XSS vulnerability in Amethyst
XSS vulnerability in Amethyst



Vulnerability ID: HTB22502
Reference: http://www.htbridge.ch/advisory/xss_vulnerability_in_amethyst_2.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 admin/update script to properly sanitize user-supplied input in "post[title]" 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:

action="http://host/admin/update/2" method="post" name="main" >
Solution: Upgrade to the most recent version


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