CVE-2021-34647: Ninjaforms Ninja Forms

Medium severity, CVSS 6.5. EPSS: 1.2% chance of exploitation in the next 30 days.

The Ninja Forms WordPress plugin is vulnerable to sensitive information disclosure via the bulk_export_submissions function found in the ~/includes/Routes/Submissions.php file, in versions up to and including 3.5.7. This allows authenticated attackers to export all Ninja Forms submissions data via the /ninja-forms-submissions/export REST API which can include personally identifiable information.

Affected products

• Ninjaforms Ninja Forms: up to and including 3.5.7

Published 2021-09-22. Last modified 2026-06-17.