A new security update has been released for Gentoo Linux - WordPress: Multiple vulnerabilities. Here the announcement:

Gentoo Linux Security Advisory GLSA 200701-10
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http://security.gentoo.org/
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Severity: Normal
Title: WordPress: Multiple vulnerabilities
Date: January 15, 2007
Bugs: #159229
ID: 200701-10

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Synopsis
========

WordPress is vulnerable to SQL injection, information disclosure, and
cross-site scripting attacks.

Background
==========

WordPress is a popular personal publishing platform with a web
interface.

Affected packages
=================

-------------------------------------------------------------------
Package / Vulnerable / Unaffected
-------------------------------------------------------------------
1 www-apps/wordpress < 2.0.6 >= 2.0.6

Description
===========

When decoding trackbacks with alternate character sets, WordPress does
not correctly sanitize the entries before further modifying a SQL
query. WordPress also displays different error messages in wp-login.php
based upon whether or not a user exists. David Kierznowski has
discovered that WordPress fails to properly sanitize recent file
information in /wp-admin/templates.php before sending that information
to a browser.

Impact
======

An attacker could inject arbitrary SQL into WordPress database queries.
An attacker could also determine if a WordPress user existed by trying
to login as that user, better facilitating brute force attacks. Lastly,
an attacker authenticated to view the administrative section of a
WordPress instance could try to edit a file with a malicious filename;
this may cause arbitrary HTML or JavaScript to be executed in users'
browsers viewing /wp-admin/templates.php.

Workaround
==========

There is no known workaround at this time.

Resolution
==========

All WordPress users should upgrade to the latest version:

# emerge --sync
# emerge --ask --oneshot --verbose ">=www-apps/wordpress-2.0.6"

References
==========

[ 1 ] CVE-2006-6808
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2006-6808
[ 2 ] CVE-2007-0107
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-0107
[ 3 ] CVE-2007-0109
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-0109

Availability
============

This GLSA and any updates to it are available for viewing at
the Gentoo Security Website:

http://security.gentoo.org/glsa/glsa-200701-10.xml

Concerns?
=========

Security is a primary focus of Gentoo Linux and ensuring the
confidentiality and security of our users machines is of utmost
importance to us. Any security concerns should be addressed to
security@gentoo.org or alternatively, you may file a bug at
http://bugs.gentoo.org.

License
=======

Copyright 2007 Gentoo Foundation, Inc; referenced text
belongs to its owner(s).

The contents of this document are licensed under the
Creative Commons - Attribution / Share Alike license.

http://creativecommons.org/licenses/by-sa/2.5