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Gentoo Linux Security Advisory                           GLSA 200505-10
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                                            https://security.gentoo.org/
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  Severity: Normal
     Title: phpBB: Cross-Site Scripting Vulnerability
      Date: May 14, 2005
      Bugs: #90213
        ID: 200505-10

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Synopsis
=======
phpBB is vulnerable to a cross-site scripting attack that could allow
arbitrary scripting code execution.

Background
=========
phpBB is an Open Source bulletin board package.

Affected packages
================
    -------------------------------------------------------------------
     Package         /  Vulnerable  /                       Unaffected
    -------------------------------------------------------------------
  1  www-apps/phpBB      < 2.0.15                            >= 2.0.15

Description
==========
phpBB is vulnerable to a cross-site scripting vulnerability due to
improper sanitization of user supplied input. Coupled with poor
validation of BBCode URLs which may be included in a forum post, an
unsuspecting user may follow a posted link triggering the
vulnerability.

Impact
=====
Successful exploitation of the vulnerability could cause arbitrary
scripting code to be executed in the browser of a user.

Workaround
=========
There are no known workarounds at this time.

Resolution
=========
All phpBB users should upgrade to the latest version:

    emerge --sync
    emerge --ask --oneshot --verbose ">=www-apps/phpbb-2.0.15"

References
=========
  [ 1 ] BugTraq ID 13344
          [ 2 ] SecurityTracker ID 1013918
        
Availability
===========
This GLSA and any updates to it are available for viewing at
the Gentoo Security Website:

  https://security.gentoo.org/glsa/200505-10

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
https://bugs.gentoo.org/.

License
======
Copyright 2005 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.

https://creativecommons.org/licenses/by-sa/2.0/