Contact Form Plugin by Fluent Forms for Quiz, Survey, and Drag & Drop WP Form Builder <= 5.1.16 - Missing Authorization to Setting Manipulation

7.5
Missing Authorization
CVE CVE-2024-2782
CVSS 7.5 (High)
Publicly Published May 17, 2024
Last Updated May 18, 2024
Researcher Tobias Weißhaar (kun_19)

Description

The Contact Form Plugin by Fluent Forms for Quiz, Survey, and Drag & Drop WP Form Builder plugin for WordPress is vulnerable to unauthorized modification of data due to a missing capability check on the /wp-json/fluentform/v1/global-settings REST API endpoint in all versions up to, and including, 5.1.16. This makes it possible for unauthenticated attackers to modify all of the plugin's settings.

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Vulnerability Details for Fluent Forms – Customizable Contact Forms, Survey, Quiz, & Conversational Form Builder

Software Type Plugin
Software Slug fluentform (view on wordpress.org)
Patched? Yes
Remediation Update to version 5.1.17, or a newer patched version
Affected Version
  • <= 5.1.16
Patched Version
  • 5.1.17

Recent vulnerabilities in Fluent Forms – Customizable Contact Forms, Survey, Quiz, & Conversational Form Builder

# Title CVE ID CVSS Researchers Date
1 Fluent Forms <= 6.2.11 - Unauthenticated Stored Cross-Site Scripting via Notification Smartcode Values CVE-2026-18146 7.2 Adrien Brunner August 12, 2026
2 Fluent Forms <= 6.2.8 - Reflected Cross-Site Scripting via 'param' CVE-2026-17571 6.1 Osvaldo Noe Gonzalez Del Rio (Os) July 31, 2026
3 Fluent Forms <= 6.2.8 - Unauthenticated Sensitive Information Exposure via Insecure Direct Object Reference and Weak Transaction Hash in 'transaction' Parameter CVE-2026-17567 5.3 ChinhNguyen July 30, 2026
4 Fluent Forms – Customizable Contact Forms, Survey, Quiz, & Conversational Form Builder < 6.2.6 - Authenticated (Contributor+) Stored Cross-Site Scripting CVE-2026-11881 6.4 Muni Nitish Kumar Yaddala July 30, 2026
5 Fluent Forms <= 6.2.7 - Unauthenticated Stored Cross-Site Scripting via Name Field Nested `password` Member CVE-2026-16655 7.2 daroo July 28, 2026
6 Fluent Forms <= 6.2.1 - Incorrect Authorization to Authenticated (Subscriber+) Arbitrary Subscription Cancellation via 'subscription_id' CVE-2026-5069 5.4 Fernando Mecozzi July 9, 2026
7 Fluent Forms <= 6.2.0 - Authenticated (Subscriber+) Authorization Bypass via 'table' Parameter CVE-2026-5395 8.2 Sander Horsman May 13, 2026
8 Fluent Forms <= 6.1.21 - Authenticated (Subscriber+) Authorization Bypass via 'form_id' Parameter CVE-2026-5396 8.2 Sander Horsman May 13, 2026
9 Fluent Forms <= 6.2.1 - Authenticated (Contributor+) Stored Cross-Site Scripting via 'permission_message' Shortcode Attribute CVE-2026-6828 6.4 zaim May 12, 2026
10 Fluent Forms <= 6.2.1 - Authenticated (Administrator+) Arbitrary File Read via Path Traversal in Email Attachment CVE-2026-6344 4.9 Niv Kochan May 5, 2026

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