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WordPress WP Insert 2.4.2 Arbitrary File Upload

WordPress WP Insert 2.4.2 Arbitrary File Upload
Posted Sep 27, 2018
Authored by Mostafa Gharzi

WordPress WP Insert plugin versions 2.4.2 and below suffer from a remote file upload vulnerability.

tags | exploit, remote, file upload
MD5 | eb35a6a7e6e061b0d06e449c248396ab

WordPress WP Insert 2.4.2 Arbitrary File Upload

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# Exploit Title: Wordpress Plugin Wp Insert - 'Fckeditor' Arbitrary File
Upload
# Exploit Author: Mostafa Gharzi
# Website: https://www.certcc.ir
# Date: 2018-09-27
# Google Dork: /wp-content/plugins/wp-insert
# Vendor: Namith Jawahar
# Software Link: https://wordpress.org/plugins/wp-insert/
# Affected Version: 2.4.2 and before
# Active installations: 30,000+
# Patched Version: unpatched
# Category: Web Application
# Platform: PHP
# Tested on: Win10x64 & Kali Linux

# 1. Plugin Description:
# WP-INSERT by SmartLogix : The Ultimate Adsense / Ad-Management Plugin for
WordPress (Optimized for Adsense)
# Wp-Insert is the most powerful yet easiest to use wordpress ad management
/ ad insertion plugin which does
# a lot more than ad management / insertion.

# 2. Technical Description:
# WordPress Plugin Wp-Insert 2.4.2 and Before allows the attacker to upload
or transfer files of dangerous types
# that can be automatically processed within the product's environment.This
vulnerability is caused by FCKeditor
# in this plugin. Uploaded files represent a significant risk to
applications. The first step in many attacks is
# to get some code to the system to be attacked. Then the attack only needs
to find a way to get the code executed.
# Using a file upload helps the attacker accomplish the first step.The
consequences of unrestricted file upload can vary,
# including complete system takeover, an overloaded file system or
database, forwarding attacks to back-end systems,
# client-side attacks, or simple defacement. It depends on what the
application does with the uploaded file and especially
# where it is stored.

# 3. Proof Of Concept (PoC):
#
http://localhost/wp-content/plugins/wp-insert/fckeditor/editor/filemanager/connectors/uploadtest.html
#
http://localhost/wp-content/plugins/wp-insert/fckeditor/editor/filemanager/connectors/test.html
#
http://localhost/wp-content/plugins/wp-insert/fckeditor/editor/filemanager/browser/default/browser.html
# 4. Demo:
#
https://www.rtiprofi.com/wp-content/plugins/wp-insert/fckeditor/editor/filemanager/connectors/uploadtest.html

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