HTB22900: Multiple XSS vulnerabilities in SyndeoCMS

[advisory () htbridge ch]

Vulnerability ID: HTB22900
Reference: http://www.htbridge.ch/advisory/multiple_xss_vulnerabilities_in_syndeocms.html
Product: SyndeoCMS
Vendor: http://www.syndeocms.org/ ( http://www.syndeocms.org/ ) 
Vulnerable Version: 2.8.02
Vendor Notification: 10 March 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:
The vulnerability exists due to failure in the "/starnet/addons/page_slideshow.php" & "/starnet/addons/tv.php" scripts 
to properly sanitize user-supplied input in "loc_id" variable.
User can execute arbitrary JavaScript code within the vulnerable application.
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.

The following PoC is available:

[code]
http://[host]/starnet/addons/page_slideshow.php?loc_id=1";></iframe><script>alert("XSS");</script>
http://[host]/starnet/addons/tv.php?loc_id=1";></iframe><script>alert("XSS");</script>
[/code]