CVE-2026-0740

The Ninja Forms - File Uploads plugin for WordPress is vulnerable to arbitrary file uploads due to missing file type validation in the 'NF_FU_AJAX_Controllers_Uploads::handle_upload' function in all versions up to, and including, 3.3.26. This makes it possible for unauthenticated attackers to upload arbitrary files on the affected site's server which may make remote code execution possible. Note: The vulnerability was partially patched in version 3.3.25 and fully patched in version 3.3.27.

Affected products

Ninja Forms - File Uploads

Fix

Available

CVSS 3.1

9.8 CRITICAL

EPSS

62.9% (99th percentile)

Weakness

CWE-434

NVD status

Deferred

Published

2026-04-07