Formidable Forms – Contact Form Plugin, Survey, Quiz, Payment, Calculator Form & Custom Form Builder <= 6.16.1.2 - Reflected Cross-Site Scripting via Custom HTML Form Parameter

6.1
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
CVE CVE-2024-11188
CVSS 6.1 (Medium)
Publicly Published November 22, 2024
Last Updated November 23, 2024
Researcher mikemyers

Description

The Formidable Forms – Contact Form Plugin, Survey, Quiz, Payment, Calculator Form & Custom Form Builder plugin for WordPress is vulnerable to POST-Based Reflected Cross-Site Scripting via the Custom HTML Form parameters in all versions up to, and including, 6.16.1.2 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that execute if they can successfully trick a user into performing an action such as clicking on a link.

Learn more about Cross-Site Scripting vulnerabilities and how to prevent them.

References

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Vulnerability Details for Formidable Forms – WordPress Form Builder for Contact Forms, Calculators, Quizzes & More

Software Type Plugin
Software Slug formidable (view on wordpress.org)
Patched? Yes
Remediation Update to version 6.16.2, or a newer patched version
Affected Version
  • <= 6.16.1.2
Patched Version
  • 6.16.2

Recent vulnerabilities in Formidable Forms – WordPress Form Builder for Contact Forms, Calculators, Quizzes & More

# Title CVE ID CVSS Researchers Date
1 Formidable Forms <= 6.28 - Unauthenticated Payment Amount Manipulation via 'item_meta' Parameter CVE-2026-2888 5.3 Michael Iden (Mickhat) March 12, 2026
2 Formidable Forms <= 6.28 - Missing Authorization to Unauthenticated Payment Integrity Bypass via PaymentIntent Reuse CVE-2026-2890 7.5 Andrés Cruciani March 12, 2026
3 Formidable Forms – Contact Form Plugin, Survey, Quiz, Payment, Calculator Form & Custom Form Builder <= 6.14 - Authenticated (Admin+) Stored Cross-Site Scripting CVE-2024-9768 4.4 Krugov Artyom October 31, 2024
4 Formidable Forms <= 6.11.1 - Authenticated (Subscriber+) Stored Cross-Site Scripting CVE-2024-6725 4.9 zer0gh0st July 30, 2024
5 Formidable Forms <= 6.7.2 - Cross-Site Request Forgery to Stored Cross-Site Scripting CVE-2024-0660 6.1 Webbernaut January 26, 2024
6 Formidable Forms <= 6.7 - Authenticated (Administrator+) Stored Cross-Site Scripting CVE-2023-6842 4.4 drop January 8, 2024
7 Formidable Forms <= 6.7 - HTML Injection CVE-2023-6830 6.5 drop January 8, 2024
8 Formidable Forms <= 6.3 - Authenticated (Subscriber+) Arbitrary Plugin Installation and Activation CVE-2023-2877 6.5 Alex Sanford May 31, 2023
9 Formidable Forms <= 6.1.2 - Unauthenticated PHP Object Injection CVE-2023-1405 9.8 Nguyen Huu Do April 6, 2023
10 Formidable Forms <= 6.0.1 - IP Spoofing via HTTP header CVE-2023-0816 5.3 Daniel Ruf March 6, 2023

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