* Advisory ID: DRUPAL-SA-CONTRIB-2010-066 * Project: FileField (third-party module) * Version: 5.x, 6.x * Date: 2010-June-16 * Security risk: Moderately critical * Exploitable from: Remote * Vulnerability: Cross Site Scripting

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

FileField module integrates with the Content Construction Kit to provide a file upload field. It also integrates with the Views and Token modules. The module does not sanitize some of the user-supplied data before displaying it (for Drupal 6.x-3.x only), or before adding it to tokens (both 5.x-2.x and 6.x-3.x), 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 be able to create or edit content with a FileField, and the site administrator must have configured a vulnerable display format ('Path to File' or 'URL to File') or be using token containing the filename, filepath, or description. -------- VERSIONS AFFECTED ---------------------------------------------------

* FileField module for Drupal 5.x versions prior to 5.x-2.5 * FileField module for Drupal 6.x versions prior to 6.x-3.4

Drupal core is not affected. If you do not use the contributed FileField [2] module, there is nothing you need to do. -------- SOLUTION ------------------------------------------------------------

Install the latest version: * If you use the FileField module for Drupal 5.x upgrade to FileField 5.x-2.5 [3] * If you use the FileField module for Drupal 6.x upgrade to FileField 6.x-3.4 [4]

See also the FileField project page [5]. -------- REPORTED BY ---------------------------------------------------------

* Justin Klein Keane [6] * Peter Wolanin [7] of the Drupal security team

-------- FIXED BY ------------------------------------------------------------

* Peter Wolanin [8] of the Drupal security team * Justin Klein Keane [9] * Nathan Haug [10], the module maintainer

-------- CONTACT -------------------------------------------------------------

The Drupal security team [11] 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/filefield [3] http://drupal.org/node/829790 [4] http://drupal.org/node/829754 [5] http://drupal.org/project/filefield [6] http://drupal.org/user/302225 [7] http://drupal.org/user/49851 [8] http://drupal.org/user/49851 [9] http://drupal.org/user/302225 [10] http://drupal.org/user/35821 [11] http://drupal.org/security-team