What is CVE-2026-5396?

CVE-2026-5396 is a high-severity vulnerability in Techjewel Fluent Forms – Customizable Contact Forms, Survey, Quiz, & Conversational Form Builder, classified under Authorization Bypass Through User-Controlled Key. CVSS score: 8.2/10. Published 2026-05-14.

How severe is CVE-2026-5396?

High severity. CVSS v3 base score is 8.2 out of 10.

Auth bypass in Techjewel Fluent Forms – Customizable Contact Forms, Survey, Quiz, & Conversational Form Builder

CVE-2026-5396

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, mod…

Vulnerability class: IDOR (Insecure Direct Object Reference)

EPSS: 0.000 (12.1th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 8.2 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N.

Affected products

Techjewel Fluent Forms – Customizable Contact Forms, Survey, Quiz, & Conversational Form Builder — versions 0

Weakness classification (CWE)

CWE-639 — Authorization Bypass Through User-Controlled Key

References

Frequently asked questions

What is CVE-2026-5396?: CVE-2026-5396 is a high-severity vulnerability in Techjewel Fluent Forms – Customizable Contact Forms, Survey, Quiz, & Conversational Form Builder, classified under Authorization Bypass Through User-Controlled Key. CVSS score: 8.2/10. Published 2026-05-14.
How severe is CVE-2026-5396?: High severity. CVSS v3 base score is 8.2 out of 10.