Vulnerability alerts / October 31, 2026

Vulnerability in Ninja Forms – The Contact Form Builder That Grows With You — CVE-2026-100155

MediumSeverity
CVSS 6.5

0.5%Estimated exploit probability
EPSS

600,000+ sitesInstalls

3.15.6Fixed in

What to do now

Update Ninja Forms – The Contact Form Builder That Grows With You to 3.15.6 or later.

Affected versions

Everything up to and including 3.15.5

Affected: Ninja Forms – The Contact Form Builder That Grows With You (plugin, ninja-forms)

Check: The plugin on wordpress.org / Our record for Ninja Forms – The Contact Form Builder That Grows With You

What the vulnerability is

The The Ninja Forms – Contact Form Builder with Calculators, Quizzes, Signatures & AI Form Builder plugin for WordPress is vulnerable to arbitrary shortcode execution in all versions up to, and including, 3.15.5 This is due to the software allowing users to execute an action that does not properly validate a value before running do_shortcode. This makes it possible for unauthenticated attackers to execute arbitrary shortcodes.

This description is reproduced verbatim from the public vulnerability record.

Sources

This page is compiled automatically from public databases. Accuracy is not guaranteed; confirm against the vendor advisory before acting.

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