[UNIX] WordPress wp_title() XSS

From: SecuriTeam <support@xxxxxxxxxxxxxx>
Date: 13 Mar 2007 15:01:50 +0200

The following security advisory is sent to the securiteam mailing list, and can be found at the SecuriTeam web site: http://www.securiteam.com
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WordPress wp_title() XSS
------------------------------------------------------------------------

SUMMARY

" <http://www.wordpress.org/> WordPress is a state-of-the-art semantic
personal publishing platform with a focus on aesthetics, web standards,
and usability." A cross site scripting vulnerability in WordPress's
wp_title allows remote attackers to inject arbitrary HTML and/or
JavaScript.

DETAILS

Vulnerable Systems:
* WordPress version 2.0.10-alpha and prior
* WordPress version 2.1.3-alpha
* WordPress version 2.2-bleeding (Revision 5002)

Workaround:
$title takes the value in raw (without any type of filter) of $year which
is an a query variable, that can be filled with any web browser via a
simply GET parameter.

Solution/Fix:
The latest SVN Revision (greater than revision 5002) has already fixed
this bug:
<http://trac.wordpress.org/changeset/5003>
http://trac.wordpress.org/changeset/5003

For series 2.1.x and 2.0.x, the vendor will fix this in the next set of
dot releases.

ADDITIONAL INFORMATION

The information has been provided by <mailto:g30rg3x@xxxxxxxxx> g30rg3_x.
The original article can be found at:
<http://chxsecurity.org/advisories/adv-1-mid.txt>
http://chxsecurity.org/advisories/adv-1-mid.txt

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