CVE-2026-57784

Ninja Forms File Uploads Extension <= 3.3.26 - Cross-Site Request Forgery

2026-04-08 00:00
Marc-André Beaulieu (h3dg3h0g)

Strategic Overview

Status
Unpatched
Affected Plugin
Ninja Forms - File Uploads
Affected Version
<= 3.3.26
CVSS
4.3Medium
Weakness type
CWE-352 · Cross-Site Request Forgery (CSRF)
CVE
CVE-2026-57784
View all Ninja Forms - File Uploads vulnerabilities

At a glance

CVE-2026-57784 is a medium-severity Cross-Site Request Forgery (CSRF) vulnerability in the Ninja Forms - File Uploads WordPress plugin, affecting versions <= 3.3.26. It carries a CVSS score of 4.3 (reachable over the network; low attack complexity). Exploitation requires no authentication. No fixed release has been reported yet; treat installations running this software as exposed. Disclosed April 2026, reported by Marc-André Beaulieu (h3dg3h0g).

Vulnerability Overview

The Ninja Forms File Uploads Extension plugin for WordPress is vulnerable to Cross-Site Request Forgery in versions up to, and including, 3.3.26. This is due to missing or incorrect nonce validation on a function. This makes it possible for unauthenticated attackers to perform an unauthorized action via a forged request granted they can trick a site administrator into performing an action such as clicking on a link.

Technical Analysis

The vector marks this flaw as remotely reachable over the network, with low attack complexity — no special timing or configuration is needed, and no privileges on the target site.

CWE-352: Cross-Site Request Forgery (CSRF)

Reaching this weakness in Ninja Forms - File Uploads <= 3.3.26 takes a caller who can reach the endpoint. Cross-site request forgery abuses the fact that browsers attach a victim's cookies to any request, so a state-changing action that only checks who you are, not whether you meant to act, can be triggered from another site.

An attacker who gets a logged-in user to load a crafted page can perform that action as them, with the impact scaling to whatever the victim's role is allowed to do. No fixed build of this plugin is recorded for Ninja Forms - File Uploads yet, so installs running <= 3.3.26 stay exposed until the vendor ships one.

Remediation

No known patch available. Please review the vulnerability's details in depth and employ mitigations based on your organization's risk tolerance. It may be best to uninstall the affected software and find a replacement.

How does WordSec protect against this?

The attempt arrives as an ordinary request to Ninja Forms - File Uploads: WordSec's web application firewall inspects request payloads before WordPress loads them. No patched version is recorded yet, which is the case where a filtering layer matters most, because there is nothing to update to.

  • Firewall
  • Alerts

External References

https://www.cve.org/CVERecord?id=CVE-2026-57784https://www.wordfence.com/threat-intel/vulnerabilities/id/4e190cf2-f968-4e81-af31-bfc67815772chttps://nvd.nist.gov/vuln/detail/CVE-2026-57784

Related records

Vulnerability data © Defiant, Inc., provided under the Wordfence Intelligence T&C