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Vulnerability Assessment Details

vBulletin BB Tag XSS

Vulnerability Assessment Summary
Checks BBTag XSS flaw in vBulletin

Detailed Explanation for this Vulnerability Assessment

Summary :

The remote web server contains a PHP script that is susceptible to a
cross-site scripting attack.

Description :

According to its banner, the remote version of vBulletin is earlier
than 2.3.6 / 3.0.6. Such versions are reportedly vulnerable to a
cross-site scripting issue involving its BB code parsing.

As a result of this vulnerability, it is possible for a remote
attacker to create a malicious link containing script code that will
be executed in the browser of an unsuspecting user when followed.

This may facilitate the theft of cookie-based authentication
credentials as well as other attacks.

See also :

http://archives.neohapsis.com/archives/fulldisclosure/2005-01/0526.html
http://www.vbulletin.com/forum/showthread.php?postid=800224

Solution :

Upgrade to vBulletin version 2.3.6 / 3.0.6 or later.

Network Security Threat Level:

Low / CVSS Base Score : 1
(AV:R/AC:H/Au:R/C:N/A:N/I:P/B:N)

Networks Security ID:

Vulnerability Assessment Copyright: This script is Copyright (C) 2005 David Maciejak

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