The Fluent Forms – Customizable Contact Forms, Survey, Quiz, & Conversational Form Builder plugin for WordPress is vulnerable to Insecure Direct Object Reference via the 'submission_id' parameter in versions up to, and including, 6.1.21. This is due to missing authorization and ownership validation on a user controlled key in the Stripe SCA confirmation AJAX endpoint. This makes it possible for unauthenticated attackers to modify payment status of targeted pending submissions (for example, setting the status to "failed").

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Fixes

Solution

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Workaround

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History

Thu, 16 Apr 2026 15:45:00 +0000

Type Values Removed Values Added
First Time appeared Techjewel
Techjewel fluent Forms – Customizable Contact Forms, Survey, Quiz, & Conversational Form Builder
Wordpress
Wordpress wordpress
Vendors & Products Techjewel
Techjewel fluent Forms – Customizable Contact Forms, Survey, Quiz, & Conversational Form Builder
Wordpress
Wordpress wordpress

Thu, 16 Apr 2026 15:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Thu, 16 Apr 2026 14:00:00 +0000

Type Values Removed Values Added
Description The Fluent Forms – Customizable Contact Forms, Survey, Quiz, & Conversational Form Builder plugin for WordPress is vulnerable to Insecure Direct Object Reference via the 'submission_id' parameter in versions up to, and including, 6.1.21. This is due to missing authorization and ownership validation on a user controlled key in the Stripe SCA confirmation AJAX endpoint. This makes it possible for unauthenticated attackers to modify payment status of targeted pending submissions (for example, setting the status to "failed").
Title Fluent Forms – Customizable Contact Forms, Survey, Quiz, & Conversational Form Builder <= 6.1.21 - Insecure Direct Object Reference in Stripe SCA Confirmation to Unauthenticated Payment Status Modification
Weaknesses CWE-639
References
Metrics cvssV3_1

{'score': 5.3, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N'}


Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: Wordfence

Published:

Updated: 2026-04-16T14:12:35.951Z

Reserved: 2026-03-13T21:07:52.323Z

Link: CVE-2026-4160

cve-icon Vulnrichment

Updated: 2026-04-16T14:12:28.490Z

cve-icon NVD

Status : Received

Published: 2026-04-16T14:16:18.167

Modified: 2026-04-16T14:16:18.167

Link: CVE-2026-4160

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-04-16T15:30:06Z

Weaknesses