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CVE-2026-0740

Unrestricted Upload of Dangerous File Type: Is CVE-2026-0740 real, exploitable, or a false positive? Here's the community verdict.

Community verdict: No field verdicts yet. Be the first practitioner to weigh in.

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signals

public sources

Exploited in wild
Yes
VulnCheck KEV · Apr 6, 2026
Public exploit
Exploit-DB +1
Metasploit/EDB/PoC
Base severity
9.8 Critical
CVSS
Exploitation prob.
63%
FIRST EPSS
Weakness
CWE-434 · Unrestricted Upload of Dangerous File Type
CWE

Reported exploited in the wild (VulnCheck KEV), though not in CISA KEV yet. Treat it as urgent and check your exposure.

cisa ssvc

CISA Vulnrichment · assessed

Exploitation
None
in the wild
Automatable
Yes
at scale
Technical impact
Total
on success

CISA decision, by how critical the affected system is to you:

  • low impact → Track
  • medium impact → Track
  • high impact → Attend

Track: normal patch cycle · Track*: watch closely · Attend: patch sooner · Act: patch now. About SSVC ↗

public exploits

links to sources — we don’t host code
Exploit-DBGitHub PoC(5)unverified

A working exploit is publicly available from a maintained source. Treat this as higher urgency and verify your exposure.

baseline read

auto · not a community verdict

Likely real & worth prioritising

High base severity and a high real-world exploitation probability both point to a genuine, actively targeted issue.

Based on CVSS · FIRST EPSS

Confirm or dispute →

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

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.

References

NVD MITRE CVE.org VulnCheck KEV

Published

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timeline

  1. CISA SSVC assessment · exploitation: none
  2. Published by NVD
  3. Added to VulnCheck KEV · reported exploited in the wild

Score and exploit changes tracked since .

Community ground truth

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In your experience, is this finding real and exploitable?

awaiting field verdicts
Real, but not a risk here
Not a real issue

Curated baseline: TruePositive's read from public sources is Real & exploitable — a starting point, not a community verdict.

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Field notes & remediation

Verdicts are the quick signal. Notes are the evidence and fixes behind them.

  • 0
    Field note · TruePositive EditorialCurated

    A working public exploit is published for this, so the barrier to attack is low. FIRST EPSS estimates about a 63% chance of exploitation in the next 30 days, which is high relative to most CVEs. It is reachable over the network with no authentication and no user interaction, which is the most dangerous profile. Patch this on priority and confirm the fix holds.

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Related CVEs

Same weakness: CWE-434 · Unrestricted Upload of Dangerous File Type.