* Advisory ID: DRUPAL-SA-CONTRIB-2009-021 * Project: CCK comment reference (third-party module) * Version: 6.x * Date: 2009 April 15 * Security risk: Moderately critical * Exploitable from: Remote * Vulnerability: Cross-site scripting (XSS)

-------- DESCRIPTION ---------------------------------------------------------

CCK comment reference project, lets administrators define node fields that are references to comments. When displaying a node edit form, the titles of candidate referenced comments are not properly filtered, allowing malicious users to inject arbitrary code on those pages. Such a cross site scripting [1] (XSS) attack may lead to a malicious user gaining full administrative access. -------- VERSIONS AFFECTED ---------------------------------------------------

* Versions of CCK comment reference for Drupal 6.x prior to 6.x-1.2

Drupal core is not affected. If you do not use the CCK comment reference module, there is nothing you need to do. -------- SOLUTION ------------------------------------------------------------

Install the latest version: * If you use CCK comment reference for Drupal 6.x upgrade to CCK comment reference 6.x-1.2 [2]

See also the CCK comment reference project page [3]. -------- REPORTED BY ---------------------------------------------------------

Kristof De Jaeger (swentel [4]). -------- FIXED BY ------------------------------------------------------------

Kristof De Jaeger (swentel [5]). -------- CONTACT -------------------------------------------------------------

The security contact for Drupal can be reached at security at drupal.org or via the form at http://drupal.org/contact.

[1] http://en.wikipedia.org/wiki/Cross-site_scripting [2] http://drupal.org/node/434842 [3] http://drupal.org/project/commentreference [4] http://drupal.org/user/107403 [5] http://drupal.org/user/107403