• Advisory ID: DRUPAL-SA-CONTRIB-2013-070
  • Project: Zen (third-party module)
  • Version: 7.x
  • Date: 2013-August-21
  • Security risk: Moderately critical
  • Exploitable from: Remote
  • Vulnerability: Cross Site Scripting


The Zen theme is a very popular base/starter theme.

Zen doesn't sufficiently escape the breadcrumb separator field, allowing a possible XSS exploit.

This vulnerability is mitigated by the fact that an attacker must have a role with the permission "administer themes".

CVE identifier(s) issued

  • CVE-2013-4275

Versions affected

  • Zen 7.x-3.x versions prior to 7.x-3.2.
  • Zen 7.x-5.x versions prior to 7.x-5.4.

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


Install the latest version:

Also see the Zen project page.

Reported by

Fixed by

Coordinated by

Contact and More Information

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