A few arguments passed via URLs are not properly sanitized before display.
When an attacker is able to entice an administrator to follow a specially
crafted link, arbitrary HTML and script code can be injected and executed in
the victim's session. Such an attack may lead to administrator access if
certain conditions are met.
If you are running Drupal 4.6.x then upgrade to Drupal 4.6.11.
http://ftp.osuosl.org/pub/drupal/files/projects/drupal-4.6.11.tar.gz
If you are running Drupal 4.7.x then upgrade to Drupal 4.7.5.
http://ftp.osuosl.org/pub/drupal/files/projects/drupal-4.7.5.tar.gz
To patch Drupal 4.6.10 use http://drupal.org/files/sa-2007-001/4.6.10.patch.
To patch Drupal 4.7.4 use http://drupal.org/files/sa-2007-001/4.7.4.patch.
Please note that the patches only contain changes related to this advisory, and
do not fix bugs that were solved in 4.6.11 or 4.7.5.
Anonymous via JPCERT.
The security contact for Drupal can be reached at security at drupal.org or
using the form at http://drupal.org/contact.
http://www.hermann-uwe.de | http://www.holsham-traders.de
http://www.crazy-hacks.org | http://www.unmaintained-free-software.org