CVE-2026-0740

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.

CVSS v3.1

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

EPSS

62.90% chance of exploitation in the next 30 days, 99th percentile

Nuclei

critical · CWE-434

Published

2026-04-07

Updated

2026-04-08

Proof-of-concept exploits (7)

• 0xgh057r3c0n/CVE-2026-074023★ · 2026-07-18
• whattheslime/CVE-2026-07401★ · 2026-06-12
• xShadow-Here/CVE-2026-07403★ · 2026-04-08
• murrez/CVE-2026-07401★ · 2026-04-25
• a24ac1/CVE-2026-07400★ · 2026-05-20
• MadExploits/ninja-form-exploit3★ · 2026-07-14
• ExDev994/CVE-2026-0740-mass1★ · 2026-07-11

Nuclei templates (1)

• projectdiscovery/nuclei-templates/blob/main/http/cves/2026/CVE-2026-0740.yaml

ExploitDB entries (1)

• https://www.exploit-db.com/exploits/52560

References

• CVE Record
• NVD entry

Related

• CVE-2025-13486
• CVE-2025-25257
• CVE-2025-2775
• CVE-2025-2776
• CVE-2025-2777
• CVE-2025-3102