bugtraq - XSS vulnerability in ATutor

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Message-Id: <201009151309.o8FD9vF7057355@htbridge.ch>
Date: Wed, 15 Sep 2010 15:09:57 +0200 (CEST)
From: advisory@...ridge.ch
To: bugtraq@...urityfocus.com
Subject: XSS vulnerability in ATutor

Vulnerability ID: HTB22600
Reference: http://www.htbridge.ch/advisory/xss_vulnerability_in_atutor_1.html
Product: ATutor
Vendor: Inclusive Design Institute ( http://www.atutor.ca/ ) 
Vulnerable Version: 1.0
Vendor Notification: 01 September 2010 
Vulnerability Type: XSS (Cross Site Scripting)
Status: Not Fixed, Vendor Alerted, Awaiting Vendor Response
Risk level: Low 
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 "/mods/_core/editor/delete_content.php" script to properly sanitize user-supplied input in "cid" 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/mods/_core/editor/delete_content.php?cid=PAGE_ID"><script>alert(document.cookie)</script>