WordPress Form Maker 1.13.3 SQL Injection

2019.05.13

Credit: Daniele Scanu

Risk: Medium

Local: No

Remote: Yes

CVE: CVE-2019-10866

CWE: CWE-89

CVSS Base Score: 7.5/10

Impact Subscore: 6.4/10

Exploitability Subscore: 10/10

Exploit range: Remote

Attack complexity: Low

Authentication: No required

Confidentiality impact: Partial

Integrity impact: Partial

Availability impact: Partial

# 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

See this note in RAW Version

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WordPress Form Maker 1.13.3 SQL Injection

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