CVE Catalog

CVE-2026-5396

High
Published: Translated: NVD NIST

Summary

The Fluent Forms plugin for WordPress is vulnerable to Authorization Bypass Through User-Controlled Key in all versions up to and including 6.1.21. The SubmissionPolicy class authorizes submission-level actions based on a user-supplied `form_id` query parameter.

Risk Assessment

The risk is that authenticated attackers with restricted Fluent Forms Manager access can access submissions of forms they are not authorized for, potentially leading to data leaks or unauthorized modifications.

Recommendation

It is recommended to update the Fluent Forms plugin to the latest version and review and strengthen the authorization policy for submission-level actions.

Related vulnerabilities

Original NVD description (English source)

The Fluent Forms plugin for WordPress is vulnerable to Authorization Bypass Through User-Controlled Key in all versions up to, and including, 6.1.21. This is due to the SubmissionPolicy class authorizing submission-level actions (read, modify, delete, add notes) based on a user-supplied `form_id` query parameter. This makes it possible for authenticated attackers, with Fluent Forms Manager access restricted to specific forms, to read, modify status, add notes to, and permanently delete form submissions belonging to any other form by spoofing the form_id parameter to a form they are authorized for.

Vulnerability data from NVD (NIST) · CISA KEV · EPSS