What is the critical vulnerability in Ninja Forms?

It's a CVSS 9.8 flaw in versions up to 3.3.26 allowing unauthenticated file uploads leading to RCE on WordPress sites.

How to fix Ninja Forms WordPress vulnerability?

Update to version 3.3.27 immediately via WP dashboard. Scan for malicious files post-update.

Does Ninja Forms vulnerability affect all WordPress sites?

Only those using Ninja Forms up to 3.3.26 with file uploads enabled—check your plugins now.

Ninja Forms' Gaping Hole: Unauthenticated Hackers Can Now Own Your WordPress Site

WordPress site owners breathed easy with Ninja Forms handling uploads securely. That illusion shattered with a critical vuln letting anyone drop bombs like PHP shells straight onto servers.

theAIcatchup Apr 09, 2026 3 min read

Red alert warning on WordPress dashboard showing Ninja Forms critical vulnerability

⚡ Key Takeaways

CVSS 9.8 unauthenticated RCE via file upload flaws in Ninja Forms up to 3.3.26. 𝕏
Patch released in 3.3.27—update ASAP to block webshell deployments. 𝕏
Expect automated exploits soon; echoes past WP plugin disasters like Revolution Slider. 𝕏

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#CVSS 9.8 #Ninja Forms vulnerability #WordPress RCE #file upload exploit

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Originally reported by InfoSecurity Magazine

⚡ Key Takeaways

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