MyBB Multiple HTML Injection Vulnerabilities

Bugtraq ID:	19718
Class:	Input Validation Error
CVE:
Remote:	Yes
Local:	No
Published:	Aug 26 2006 12:00AM
Updated:	Aug 31 2006 08:03PM
Credit:	Redworm is credited with the discovery of these vulnerabilities.
Vulnerable:	MyBulletinBoard MyBulletinBoard 1.1.7
Not Vulnerable:

MyBB Multiple HTML Injection Vulnerabilities

MyBB is prone to multiple HTML-injection vulnerabilities because it fails to properly sanitize user-supplied input before using it in dynamically generated content.

Attacker-supplied HTML and script code would execute in the context of the affected website, potentially allowing an attacker to steal cookie-based authentication credentials or to control how the site is rendered to the user; other attacks are also possible.

Version 1.1.7 is vulnerable; other versions may be affected.

MyBB Multiple HTML Injection Vulnerabilities

Attackers can exploit these issues via a web client or specially crafted avatar images.

A sample exploit has been provided:

• /data/vulnerabilities/exploits/mybb-avatar-html-inj.js

MyBB Multiple HTML Injection Vulnerabilities

Solution:
Currently we are not aware of any vendor-supplied patches for these issues. If you feel we are in error or if you are aware of more recent information, please mail us at: [email protected]:[email protected].

MyBB Multiple HTML Injection Vulnerabilities

References:

• MyBulletinBoard Home Page (MyBulletinBoard)
  
• MyBB Html Injection ( XSS ) ([email protected])