full-disclosure - [FD] WordPress Plugin Form Maker 1.13.3

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Date: Fri, 10 May 2019 17:23:41 +0200
From: Daniele Scanu <danielescanu20@...il.com>
To: fulldisclosure@...lists.org
Subject: [FD]  WordPress Plugin Form Maker 1.13.3 - SQL Injection

# Exploit Title: WordPress Plugin Form Maker 1.13.3 - SQL Injection
# Date: 22-03-2019
# Exploit Author: Daniele Scanu @ Certimeter Group
# Vendor Homepage: https://10web.io/plugins/
# Software Link: https://wordpress.org/plugins/form-maker/
# Version: 1.13.3
# Tested on: Wordpress 5.1

Description:
In the Form Maker plugin before 1.13.3 for WordPress, it's possible to
achieve SQL injection in the function get_labels_parameters in the file
form-maker/admin/models/Submissions_fm.php with a crafted value of the
asc_or_desc parameter.

PoC:
* Go in to Form-Maker menu and select Submissions.
* Open menu "Select a form" and select an any item for example "Contact Us".
* Go in to url bar and insert in asc_or_desc parameter a payload such as:

,(case+when+(select+sleep(5)+from+wp_formmaker_submits+limit+1)+then+1+else+2+end)+asc+--+

With this payload the server will sleep for 5 second.

MITRE assigned CVE-2019-10866 for this issue.

Daniele Scanu

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