Is CVE-2026-90438 exploited in the wild?

No. Junglewise Threat Intelligence has no report of CVE-2026-90438 being exploited in the wild.

How severe is CVE-2026-90438?

High severity, with a CVSS score of 7.2, published 2 October 2026.

Which products and versions are affected?

Ninja Forms up to and including 3.15.4.

Is there a fix for CVE-2026-90438?

No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.

How is CVE-2026-90438 attacked?

It is attacked over the network, in a software library.

Am I affected by CVE-2026-90438?

Check whether you run Ninja Forms at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

CVE-2026-90438: Ninja Forms stored cross-site scripting in paragraph text field

CVE-2026-90438 · Severity: high · CVSS 7.2 · Published 2026-10-02

Ninja Forms is a WordPress form builder plugin that allows websites to create custom contact forms. An unauthenticated attacker can inject malicious scripts into form submissions through the rich text paragraph field, which then execute whenever any user views the affected page, potentially stealing login credentials or sensitive data.

Technologies: Ninja Forms. Vendors: Ninja Forms.

Quick answers

Is CVE-2026-90438 exploited in the wild?: No. Junglewise Threat Intelligence has no report of CVE-2026-90438 being exploited in the wild.
How severe is CVE-2026-90438?: High severity, with a CVSS score of 7.2, published 2 October 2026.
Which products and versions are affected?: Ninja Forms up to and including 3.15.4.
Is there a fix for CVE-2026-90438?: No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
How is CVE-2026-90438 attacked?: It is attacked over the network, in a software library.
Am I affected by CVE-2026-90438?: Check whether you run Ninja Forms at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

Technical details

A stored XSS vulnerability exists in the Paragraph Text (RTE) field due to insufficient input sanitization and output escaping. Unauthenticated attackers can submit arbitrary JavaScript code via form fields with the Rich Text Editor option enabled; the payload persists in the database and executes in the context of any user accessing the page with the submitted form.

Affected products

Ninja Forms Ninja Forms up to and including 3.15.4

Timeline

2026-10-02: disclosed

References

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