CVE-2026-0740 in the critical feed json
Ninja Forms - File Upload <= 3.3.26 - Unauthenticated Arbitrary File Upload
published 2026-04-07 7 mo ago modified 2026-10-26 13 d 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.
Timeline
- Published
- First public exploit (EDB-52560)
CISA SSVC
- Exploitation
- none
- Automatable
- yes
- Technical impact
- total
- Assessed
- 7 mo ago
Exploit prediction
62.90% chance of exploitation in the next 30 days, higher than 99.2% of all scored CVEs (FIRST EPSS, 2026-11-08).
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
- CVE List CVE-2026-0740
- NVD CVE-2026-0740
Fencer Vulns 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.