SQL injection in Form Maker by 10Web WordPress plugin

1) SQL injection

EUVDB-ID: #VU18733

Risk: Medium

CVSSv3.1: 4.2 [CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:L/E:P/RL:O/RC:C]

CVE-ID: CVE-2019-10866

CWE-ID: CWE-89 - Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection')

Exploit availability: Yes

Description

The vulnerability allows a remote attacker to execute arbitrary SQL queries in database.

The vulnerability exists due to insufficient sanitization of user-supplied data passed to the "get_labels_parameters" function from the form-maker/admin/models/Submissions_fm.php file  with a crafted value of the "asc_or_desc" parameter. A remote authenticated attacker can send a specially crafted request to the affected application and execute arbitrary SQL commands within the application database.

Successful exploitation of this vulnerability may allow a remote attacker to read, delete, modify data in database and gain complete control over the affected application.

PoC:

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

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Form Maker by 10Web – Mobile-Friendly Drag & Drop Contact Form Builder: 1.5 - 1.13.2

External links

http://seclists.org/fulldisclosure/2019/May/8
http://wordpress.org/plugins/form-maker/#developers

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated privileged user via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability. However, proof of concept for this vulnerability is available.