CVE-2026-0740
Ninja Forms - File Upload <= 3.3.26 - Unauthenticated Arbitrary File Upload
- Published
- Apr 7, 2026
- Updated
- Apr 8, 2026
- Assigning CNA
- Wordfence
- Evidence observed
- May 13, 2026
Primary CVSS
nvd · CVSS 3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HHigh · next 30 days
- Percentile
- 99.2%
- Model date
- Oct 15, 2026
EPSS is a statistical estimate, not a certainty or a measure of impact. Combine it with CVSS, KEV status, exposure and your environment.
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.
Sources
http/cves/2026/CVE-2026-0740.yaml
Nuclei TemplatesDeclared conditions
- network: http($.protocol_keys)
- verification: dsl($.matchers[*].type)
- CVE-2026-0740Exploit
Ninja Forms File Uploads <= 3.3.26 - Unauthenticated Arbitrary File Upload
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