Community Server BBCode Tag HTML Injection Vulnerability

Bugtraq ID:	49025
Class:	Input Validation Error
CVE:
Remote:	Yes
Local:	No
Published:	Aug 04 2011 12:00AM
Updated:	Aug 04 2011 12:00AM
Credit:	Advisories PontoSec
Vulnerable:	Telligent Systems Community Server 2007
Not Vulnerable:	Telligent Systems Telligent Community 5.X

Community Server BBCode Tag HTML Injection Vulnerability

Community Server is prone to an HTML-injection vulnerability because it fails to properly sanitize user-supplied input before using it in dynamically generated content.

Successful exploits will allow attacker-supplied HTML and script code to run in the context of the affected browser, potentially allowing the attacker to steal cookie-based authentication credentials or to control how the site is rendered to the user. Other attacks are also possible.

Community Server 2007 is vulnerable; other versions may also be affected.

Community Server BBCode Tag HTML Injection Vulnerability

Attackers can use a browser to exploit this issue.

Community Server BBCode Tag HTML Injection Vulnerability

Solution:
Updates are available. Please see the references for details.

Community Server BBCode Tag HTML Injection Vulnerability

References:

• Community Server Homepage (Telligent Systems)
  
• Community Server - Stored Cross-Site Scripting in User's Signature (Advisories PontoSec)