What is CVE-2026-0740 in Ninja Forms?

It's a critical unauthenticated file upload vuln in Ninja Forms File Uploads add-on, allowing PHP shells and RCE via missing checks and path traversal.

How do I fix Ninja Forms vulnerability CVE-2026-0740?

Upgrade to version 3.3.27 immediately, enable a WAF like Wordfence, and audit any existing uploads.

Are Ninja Forms attacks widespread?

Yes — Wordfence blocked 3,600+ in 24 hours, with thousands daily; 90,000 users at risk.

🕳️ Vulnerabilities & CVEs

Hackers Slip PHP Shells into Ninja Forms — WordPress Sites Crumble Overnight

Picture this: a hacker, no password needed, uploads a venomous PHP script straight to your WordPress server. That's the chaos unfolding with Ninja Forms' critical vulnerability right now.

theAIcatchup Apr 07, 2026 3 min read

Illustration of hacker uploading PHP shell through Ninja Forms WordPress plugin flaw

⚡ Key Takeaways

Unauthenticated attackers can upload PHP shells via Ninja Forms File Uploads due to no file validation. 𝕏
Update to v3.3.27 now — exploits are live, with thousands blocked daily. 𝕏
Echoes past WordPress supply chain attacks; predict worm potential without mass patching. 𝕏

Published by

theAIcatchup

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#CVE-2026-0740 #Ninja Forms vulnerability #WordPress exploit #remote code execution

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Originally reported by Bleeping Computer

⚡ Key Takeaways

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