Skip to content
OpenAdvisories
Critical · 9.8 Scanner template Public exploit CVE-2026-0740 EUVD-2026-19572GHSA-v8wq-rjpf-669f

Ninja Forms - File Upload <= 3.3.26 - Unauthenticated Arbitrary File Upload

Published Apr 7, 2026 · Updated Apr 8, 2026 · Assigned by Wordfence

Vendor: Saturday Drive Product: Ninja Forms - File Uploads Category: Web / CMS

Description

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

VendorProductAffectedFixed
SaturdayDrive Ninja Forms - File Uploads ≤ 3.3.26 —

Public exploits

Exploit or proof-of-concept code for this vulnerability is publicly available, which lowers the bar for attackers. Treat it as a reason to patch sooner.

Third-party code, not reviewed by us. Public PoCs are sometimes fake or contain malware. Read the code first and run it only in an isolated lab, against systems you are authorised to test.

Exploit-DB 1

GitHub 8 repositories

Sources: PoC-in-GitHub, Metasploit Framework, Exploit-DB — updated daily. Only links are listed; no exploit code is hosted here.

Automated scanner template

A ready-made Nuclei template detects this vulnerability automatically. Vulnerabilities with public scanner templates are typically probed across the internet soon after the template appears — exposed systems should be patched first.

Source: projectdiscovery/nuclei-templates (MIT) — updated daily. Only links are listed.

References