* Advisory ID: DRUPAL-SA-CONTRIB-2009-047 * Project: Calendar (third-party module) * Version: 6.x * Date: 2009-July-29 * Security risk: Moderately critical * Exploitable from: Remote * Vulnerability: Cross Site Scripting -------- DESCRIPTION --------------------------------------------------------- The Calendar module enables Views module to display any Date module date field as a calendar. The module does not properly escape user input when displaying titles of content types that have Date fields. A user with permission to create new content types (including via the Date module's Date Tools sub-module) could attempt a cross site scripting [1] (XSS) attack, leading to the user gaining full administrative access. -------- VERSIONS AFFECTED --------------------------------------------------- * Calendar for Drupal 6.x prior to 6.x-2.2 Drupal core is not affected. If you do not use the contributed Calendar module, there is nothing you need to do. -------- SOLUTION ------------------------------------------------------------ Upgrade to the latest version: * If you use Calendar for Drupal 6.x upgrade to Calendar 6.x-2.2 [2] See also the Calendar project page [3]. -------- REPORTED BY --------------------------------------------------------- Justin C. Klein Keane [4] -------- FIXED BY ------------------------------------------------------------ Justin C. Klein Keane [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/534336 [3] http://drupal.org/project/calendar [4] http://drupal.org/user/302225 [5] http://drupal.org/user/302225