XSS vulnerability in CMS Source

Vulnerability ID:HTB22549
Product:CMS Source
Vendor:Proud Daddy Web Design ( http://www.prouddaddy.net/ )
Vulnerable Version:Current at 28.07.2010 and Probably Prior Versions
Vendor Notification:28 July 2010
Public Disclosure:11 August 2010
Vulnerability Type:XSS (Cross Site Scripting)
Status:Not Fixed, Vendor Alerted, Awaiting Vendor Response
Risk level:Medium
Credit:High-Tech Bridge SA

Vulnerability Details:

User can execute arbitrary JavaScript code within the vulnerable application.

The vulnerability exists due to failure in the serach sysem to properly sanitize user-supplied input in "searchstring" 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/home/demo1/index.php?target=search&subtarget=top&searchstring=%3Cimg+src=0+onerror=alert%28document.cookie%29%3E

Solution:

Currently we are not aware of any vendor-supplied patches or other solutions. If you are aware of more recent information related to this issue please notify us: