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SyndeoCMS XSS vulnerability
XSS vulnerability in SyndeoCMS
XSS vulnerability in SyndeoCMS

Vulnerability ID: HTB22493
Reference: http://www.htbridge.ch/advisory/xss_vulnerability_in_syndeocms_2.html 
Product: SyndeoCMS
Vendor: The SyndeoCMS team ( http://www.syndeocms.org/ ) 
Vulnerable Version: 2.9.0 and Probably Prior Versions
Vendor Notification: 12 July 2010 
Vulnerability Type: XSS (Cross Site Scripting)
Status: Not Fixed, Vendor Alerted, Awaiting Vendor Response
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 save_message script to properly sanitize user-supplied input in "message" 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/starnet/index.php?option=modulemanager&module=13&modoption=save_message&suboption=&message_id=1&cat_id=4" method="post" name="main" >

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