----------------------------------------------------------------------------
Drupal security advisory                                  DRUPAL-SA-2006-011
----------------------------------------------------------------------------
Advisory ID:    DRUPAL-SA-2006-011
Project:        Drupal core
Date:           2006-Aug-02
Security risk:  less critical
Impact:         Drupal 4.6, Drupal 4.7
Where:          from remote
Vulnerability:  cross-site scripting
----------------------------------------------------------------------------

Description
-----------

A malicious user can execute a cross site scripting attack by enticing
someone to visit a Drupal site via a specially crafted link. 

Versions affected
-----------------
- Drupal 4.6.x versions before Drupal 4.6.9
- Drupal 4.7.x versions before Drupal 4.7.3

Solution
--------
If you are running Drupal 4.6.x then upgrade to Drupal 4.6.9
(http://ftp.osuosl.org/pub/drupal/files/projects/drupal-4.6.9.tar.gz).
If you are running Drupal 4.7.x then upgrade to Drupal 4.7.3
(http://ftp.osuosl.org/pub/drupal/files/projects/drupal-4.7.3.tar.gz).

To patch Drupal 4.6.8 use http://drupal.org/files/sa-2006-011/4.6.8.patch.
To patch Drupal 4.7.2 use http://drupal.org/files/sa-2006-011/4.7.2.patch.

Reported By
-----------
Ayman Hourieh

Note about Drupal 4.7.3 and custom themes or JavaScript
-------------------------------------------------------

A bug in the form API theme layer made it possible to have an ID occur more
than once in a page. This invalidates the HTML, makes styling with CSS hard
or impossible, and can break JavaScript. A patch was committed to ensure
unique IDs. 
This patch has a side-effect that IDs for hidden form fields in your site's
HTML will change. You might need to adapt your custom CSS or JavaScript, if
it refers to such a changed ID.

Contact
-------
The security contact for Drupal can be reached at security@drupal.org
or using the form at http://drupal.org/contact.
More information is available from http://drupal.org/security or from
our security RSS feed http://drupal.org/security/rss.xml.