Drupal Markdown Preview Module Live Preview HTML Injection Vulnerability

Bugtraq ID:	36505
Class:	Input Validation Error
CVE:
Remote:	Yes
Local:	No
Published:	Sep 23 2009 12:00AM
Updated:	Sep 24 2009 04:30PM
Credit:	David Needham
Vulnerable:	Drupal Markdown Preview 6.x
Not Vulnerable:

Drupal Markdown Preview Module Live Preview HTML Injection Vulnerability

The Markdown Preview module for Drupal is prone to an HTML-injection vulnerability because the application fails to properly sanitize user-supplied input before using it in dynamically generated content.

Attacker-supplied HTML and script code would 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.

Markdown 6.x is vulnerable; other versions may also be affected.

Drupal Markdown Preview Module Live Preview HTML Injection Vulnerability

Attackers can use a browser to exploit this issue.

Drupal Markdown Preview Module Live Preview HTML Injection Vulnerability

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

Drupal Markdown Preview Module Live Preview HTML Injection Vulnerability

References:

• Drupal Security Advisory DRUPAL-SA-CONTRIB-2009-061 (Drupal)
  
• Markdown Preview Homepage (Drupal)