CVE-2021-34648 MEDIUM

CVE-2021-34648: Ninja Forms <= 3.5.7 Unprotected REST-API to Email Injection

Vendor Saturday Drive
Product Ninja Forms
Weakness CWE-863 · Incorrect authorization
Published September 22, 2021
Last update March 31, 2025
View on NVD All CVEs

CVSS base score

6.4/10
Attack vector Network
Attack complexity Low
Privileges required Low
User interaction None
Confidentiality Low
Integrity Low

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N

What the vulnerability does

01Description

The Ninja Forms WordPress plugin is vulnerable to arbitrary email sending via the trigger_email_action function found in the ~/includes/Routes/Submissions.php file, in versions up to and including 3.5.7. This allows authenticated attackers to send arbitrary emails from the affected server via the /ninja-forms-submissions/email-action REST API which can be used to socially engineer victims.

Key dates

02Disclosure timeline

September 22, 2021 CVE published
March 31, 2025 Record updated