drupal-views: multiple vulnerabilities

Views module provides a flexible method for Drupal site designers to control how lists of content are presented. Views accepts parameters in the URL and uses them in an AJAX callback. The values were not filtered, thus allowing injection of JavaScript code via the AJAX response. A user tricked into visiting a crafted URL could be exposed to arbitrary script or HTML injected into the page. In addition, the Views module does not properly sanitize file descriptions when displaying them in a view, thus the the file descriptions may be used to inject arbitrary script or HTML. Such cross site scripting [1] (XSS) attacks may lead to a malicious user gaining full administrative access. These vulnerabilities affect only the Drupal 6 version. The file description vulnerability is mitigated by the fact that the attacker must have permission to upload files. In both the Drupal 5 and Drupal 6 versions, users with permission to 'administer views' can execute arbitrary PHP code using the views import feature. An additional check for the permission 'use PHP for block visibility' has been added to insure that the site administrator has already granted users of the import functionality the permission to execute PHP.