* Advisory ID: DRUPAL-SA-CONTRIB-2010-0XX * Project: Hierarchical Select (third-party module) * Version: 5.x, 6.x * Date: 2010-July-07 * Security risk: Moderately critical * Exploitable from: Remote * Vulnerability: Cross Site Scripting -------- DESCRIPTION --------------------------------------------------------- The Hierarchical Select module provides a "hierarchical_select" form element, which is a greatly enhanced way for letting the user select items in a taxonomy. The module does not sanitize some of the user-supplied data before displaying it, leading to a Cross Site Scripting (XSS [1]) vulnerability that may lead to a malicious user gaining full administrative access. This vulnerability is mitigated by the fact that the attacker must have a role with the 'administer taxonomy' permission. -------- VERSIONS AFFECTED --------------------------------------------------- * Hierarchical Select module for Drupal 5.x versions prior to 5.x-3.2 * Hierarchical Select module for Drupal 6.x versions prior to 6.x-3.2 Drupal core is not affected. If you do not use the contributed Hierarchical Select [2] module, there is nothing you need to do. -------- SOLUTION ------------------------------------------------------------ Install the latest version: * If you use the Hierarchical Select module for Drupal 5.x upgrade to Hierarchical Select 5.x-3.2 [3] * If you use the Hierarchical Select module for Drupal 6.x upgrade to Hierarchical Select 6.x-3.2 [4] See also the Hierarchical Select project page [5]. -------- REPORTED BY --------------------------------------------------------- * Jingxiang Rao [6] * Sam Oldak -------- FIXED BY ------------------------------------------------------------ * Wim Leers [7], the module maintainer * Sam Oldak -------- CONTACT ------------------------------------------------------------- The Drupal security team [8] 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/project/hierarchical_select [3] http://drupal.org/node/847286 [4] http://drupal.org/node/847284 [5] http://drupal.org/project/hierarchical_select [6] http://drupal.org/user/623328 [7] http://drupal.org/user/99777 [8] http://drupal.org/security-team