CVE-2026-90438

High

Description

The Ninja Forms – The Contact Form Builder That Grows With You plugin for WordPress is vulnerable to Stored Cross-Site Scripting via Paragraph Text (RTE) Field Submission in all versions up to, and including, 3.15.4 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. This is only exploitable when the targeted Paragraph Text field has the Rich Text Editor (RTE) option enabled.

SeverityHigh
CVSS7.2
Exploit probability—
ProductNinja Forms – Contact Form Builder with Calculators, Quizzes, Signatures & AI Form Builder
PublishedOct 2, 2026
First seenOct 2, 2026

How to fix

Sources list no fixed version or patch link for this vulnerability.

Affected products

ProductAffected versionsFixed in
kstover Ninja Forms – Contact Form Builder with Calculators, Quizzes, Signatures & AI Form Builderv ≤ 3.15.4—

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CVE-2026-90438 · Ninja Forms – Contact Form Builder with Calculators, Quizzes, Signatures & AI Form Builder · Dark Radar