Vulnerability in Ninja Forms – The Contact Form Builder That Grows With You — CVE-2026-90438

What to do now

Update Ninja Forms – The Contact Form Builder That Grows With You to 3.15.5 or later.

Affected versions

• Everything up to and including 3.15.4

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.

This description is reproduced verbatim from the public vulnerability record.

• https://www.wordfence.com/threat-intel/vulnerabilities/id/a159485d-ce5b-46e7-8e63-a72012ccc180?source=api-prod

Part of this record comes from Wordfence Intelligence. Original: https://www.wordfence.com/threat-intel/vulnerabilities/id/a159485d-ce5b-46e7-8e63-a72012ccc180
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