Vulnerability ID: HTB22819 Reference: http://www.htbridge.ch/advisory/xss_vulnerability_in_webasyst_shop_script_1.html Product: WebAsyst Shop-Script Vendor: WebAsyst, LLC ( http://www.shop-script.ru/ ) Vulnerable Version: Current version 2011.01.23 (shop-script.ru/demo/) Vendor Notification: 25 January 2011 Vulnerability Type: XSS (Cross Site Scripting) Risk level: Medium Credit: High-Tech Bridge SA - Ethical Hacking & Penetration Testing (http://www.htbridge.ch/)
The vulnerability exists due to failure to properly sanitize user-supplied input in "app" 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: http://host/?app=UG"><script>alert(document.cookie)</script>