By Drupal Security Team on
  • Advisory ID: DRUPAL-SA-CONTRIB-2012-032
  • Project: Block Class (third-party module)
  • Version: 7.x
  • Date: 2012-March-07
  • Security risk: Moderately Critical
  • Exploitable from: Remote
  • Vulnerability: Cross Site Scripting

Description

CVE: CVE-2012-1657

The block class module allows users to add classes to any block through the block's configuration interface

The class names in a block were not properly filtered. Someone with the ability to modify or create blocks could inject java script that would be rendered when viewing the block.

Versions affected

  • Blockclass versions prior to 7.x-1.0.

Drupal core is not affected. If you do not use the contributed Block Class module, there is nothing you need to do.

Solution

Install the latest version:

  • If you use the block class module for Drupal 7.x, upgrade to block class 7.x-1.1

See also the Block Class project page.

Reported by

Fixed by

Coordinated by

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.

⋅ Categories: Drupal 7.x