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TUCoPS :: Web :: CMS / Portals :: 1008-80.htm

CMSimple XSS vulnerability



XSS vulnerability in CMSimple
XSS vulnerability in CMSimple



Vulnerability ID: HTB22560
Reference: http://www.htbridge.ch/advisory/xss_vulnerability_in_cmsimple_2.html 
Product: CMSimple
Vendor: Peter Andreas Harteg ( http://www.cmsimple.org/ ) 
Vulnerable Version: 3.3 and Probably Prior Versions
Vendor Notification: 02 August 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 "/cmsimple/adm.php" script to properly sanitize user-supplied input in "text" 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/" method="post" name="main" >


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