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By Drupal Security Team on
- Advisory ID: DRUPAL-SA-CONTRIB-2011-020
- Project: Taxonomy Access Control Lite (third-party module)
- Version: 6.x
- Date: 2011-May-11
- Security risk: Less critical
- Exploitable from: Remote
- Vulnerability: Cross Site Scripting
Description
The tac_lite module allows site administrators to hide nodes and taxonomy terms from users without permission to view them. The permission to view terms can be granted to a specific user, or all users with a specific role.
The module doesn't sufficiently strip markup when rendering taxonomy names, leading to a Cross Site Scripting (XSS) vulnerability that may lead to a malicious user gaining full administrative access.
This vulnerability is mitigated by the fact that an attacker must have a role with the permission "administer taxonomy". Only users with the permission "administer tac_lite" are vulnerable to the attack.
Versions affected
- tac_lite 6.x-1.5 and earlier
Drupal core is not affected. If you do not use the contributed Taxonomy Access Control Lite module, there is nothing you need to do.
Solution
Install the latest version:
- If you use the tac_lite module for Drupal 6.x upgrade to tac_lite 6.x-1.6
See also the Taxonomy Access Control Lite project page.
Reported by
Fixed by
- Dave Cohen the module maintainer
- Stéphane Corlosquet of the Drupal Security Team
Contact and More Information
The Drupal security team can be reached at security at drupal.org or via the contact form at http://drupal.org/contact.
Learn more about the Drupal Security team and their policies, writing secure code for Drupal, and securing your site.
