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Fencer Intel
critical 9.8

CVE-2026-0740 in the critical feed json

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

published 7mo ago modified 14d ago also EUVD-2026-19572

cvss
9.8
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
62.9%
EPSS 62.9% chance of exploitation in 30 days, percentile 99.2%
public exploits
1
Exploit-DB, plus a Nuclei check

Summary

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.

Is CVE-2026-0740 in your stack? Fencer shows which of your repositories are affected as soon as an advisory lands, and opens the fix as a pull request.

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Timeline

  1. Published
  2. First public exploit (EDB-52560)

CISA SSVC

Exploitation
none
Automatable
yes
Technical impact
total
Assessed
7mo ago

Exploit prediction

62.90% chance of exploitation in the next 30 days, higher than 99.2% of all scored CVEs (FIRST EPSS, 2026-11-09).

Exploits and checks

  • EDB-52560 Ninja Forms Uploads - Unauthenticated PHP File Upload webapps, 2026-05-13
  • Nuclei template Ninja Forms File Uploads <= 3.3.26 - Arbitrary File Upload nuclei detection template

CVSS scores

assigned by version score vector
CNA 3.1 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected products

  • SaturdayDrive Ninja Forms - File Uploads

Classification

Weakness
  • CWE-434 Unrestricted Upload of File with Dangerous Type
Technology feeds

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

CPEs and fixed versions use Anchore's correction of NVD's data: Added CPE configurations because not yet analyzed by NVD.