Block Class – Critical – Cross Site Scripting (XSS) – SA-CONTRIB-2015-175

Description

This module enables you to add custom classes to blocks.
The module doesn’t sufficiently scrub class names written by a malicious block class administrator.
This vulnerability is mitigated by the fact that an attacker must have a role with the permission “Administer block classes”.

CVE identifier(s) issued

  • A CVE identifier will be requested, and added upon issuance, in accordance with Drupal Security Team processes.

Versions affected

  • block_class 7.x-2.x versions prior to 7.x-2.2.

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:

Also see 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 https://www.drupal.org/contact.

Learn more about the Drupal Security team and their policies, writing secure code for Drupal, and securing your site.

Follow the Drupal Security Team on Twitter at https://twitter.com/drupalsecurity

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