Vulnerability ID: HTB22830 Reference: http://www.htbridge.ch/advisory/multiple_xss_vulnerabilities_in_gollos.html Product: Gollos Vendor: Gollos ( http://www.gollos.com/ ) Vulnerable Version: 2.8 and probably prior versions Vendor Notification: 01 February 2011 Vulnerability Type: XSS (Cross Site Scripting) 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 "register.aspx", "publication/info.aspx", "user/add.aspx" scripts to properly sanitize user-supplied input in "returnurl" 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/?returnurl=";><script>alert(document.cookie)</script> http://host/register.aspx?returnurl=";><script>alert(document.cookie)</script> https://adminhost/publication/info.aspx?pt=1&returnurl=";><script>alert(document.cookie)</script> https://adminhost/user/add.aspx?returnurl=";><script>alert(document.cookie)</script> user/add.aspx
