full-disclosure - [ GLSA 200604-01 ] MediaWiki: Cross-site scripting vulnerability

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Date: Tue Apr  4 13:05:11 2006
From: dercorny at gentoo.org (Stefan Cornelius)
Subject: [ GLSA 200604-01 ] MediaWiki: Cross-site
	scripting vulnerability

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Gentoo Linux Security Advisory                           GLSA 200604-01
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                                            http://security.gentoo.org/
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  Severity: Low
     Title: MediaWiki: Cross-site scripting vulnerability
      Date: April 04, 2006
      Bugs: #127971
        ID: 200604-01

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Synopsis
========

MediaWiki is vulnerable to a cross-site scripting attack that could
allow arbitrary JavaScript code execution.

Background
==========

MediaWiki is a collaborative editing software, used by big projects
like Wikipedia.

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

    -------------------------------------------------------------------
     Package             /  Vulnerable  /                   Unaffected
    -------------------------------------------------------------------
  1  www-apps/mediawiki      < 1.4.15                        >= 1.4.15

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

MediaWiki fails to decode certain encoded URLs correctly.

Impact
======

By supplying specially crafted links, a remote attacker could exploit
this vulnerability to inject malicious HTML or JavaScript code that
will be executed in a user's browser session in the context of the
vulnerable site.

Workaround
==========

There is no known workaround at this time.

Resolution
==========

All MediaWiki users should upgrade to the latest version:

    # emerge --sync
    # emerge --ask --oneshot --verbose ">=www-apps/mediawiki-1.4.15"

References
==========

  [ 1 ] CVE-2006-1498
        http://www.cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2006-1498
  [ 2 ] MediaWiki 1.4.15 Release Notes
        http://sourceforge.net/project/shownotes.php?release_id=404869

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

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

  http://security.gentoo.org/glsa/glsa-200604-01.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@...too.org or alternatively, you may file a bug at
http://bugs.gentoo.org.

License
=======

Copyright 2006 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/2.0
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