WordPress Form Maker 1.13.3 SQL Injection

Credit: Daniele Scanu
Risk: Medium
Local: No
Remote: Yes

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

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