bugtraq - XSS in SweetRice CMS

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Message-Id: <201011040957.oA49vkg8005471@htbridge.ch>
Date: Thu, 4 Nov 2010 10:57:46 +0100 (CET)
From: advisory@...ridge.ch
To: bugtraq@...urityfocus.com
Subject: XSS in SweetRice CMS

Vulnerability ID: HTB22668
Reference: http://www.htbridge.ch/advisory/xss_in_sweetrice_cms.html
Product: SweetRice CMS
Vendor: basic-cms.org ( http://www.basic-cms.org/ ) 
Vulnerable Version: 0.6.7
Vendor Notification: 21 October 2010 
Vulnerability Type: XSS (Cross Site Scripting)
Status: Fixed by Vendor
Risk level: Low 
Credit: High-Tech Bridge SA - Ethical Hacking & Penetration Testing (http://www.htbridge.ch/) 

Vulnerability Details:
The vulnerability exists due to failure in the "/as/index.php" scripts to properly sanitize user-supplied input in username variable from cookie. 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:

GET /as/index.php HTTP/1.1
Cookie: top_height=')%3B"><script>alert('XSS')%3B</script>;

Solution: Upgrade to the most recent version