SA-CONTRIB-2012-104 - Privatemsg - Cross Site Scripting (XSS)

The Privatemsg module allows users to send private messages between to each other. The module doesn’t sufficiently sanitize user names when creating messages.

This vulnerability is mitigated by the fact that it is not possible to create insecure user names through the default user interface. The exploit is only possible in combination with another module that allows this, such as Realname which allows site-builders to choose fields to display an alternative username.

CVE: CVE-2012-4468

Versions affected

• Privatemsg 7.x-1.x versions prior to 7.x-1.3

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

Solution

Install the latest version:

• If you use the Privatemsg module for Drupal 7, upgrade to Privatemsg 7.x-1.3

Also see the Privatemsg project page.

Reported by

• Dave Reid of the Drupal Security Team

Fixed by

• Sascha Grossenbacher the module maintainer

Coordinated by

• Dave Reid of the Drupal Security Team
• Greg Knaddison of the Drupal Security Team
• Michael Hess of the Drupal Security Team