CVE-2024-13666 Fluent Forms – Customizable Contact Forms, Survey, Quiz, & Conversational Form Builder <= 5.2.12 - IP-Spoofing

Medium 5.3 Published Updated

Unauthenticated attackers can spoof IP addresses to bypass form submission restrictions in the Fluent Forms WordPress plugin.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Over the internet
Victim action needed
Not needed
Fix
None listed

What is CVE-2024-13666?

CVE-2024-13666 is a medium-severity vulnerability in techjewel Fluent Forms – Customizable Contact Forms, Survey, Quiz, & Conversational Form Builder, published on 22 Mar 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

The Fluent Forms – Customizable Contact Forms, Survey, Quiz, & Conversational Form Builder plugin for WordPress is vulnerable to IP Address Spoofing in all versions up to, and including, 5.2.12 due to insufficient IP address validation and use of user-supplied HTTP headers as a primary method for IP retrieval. This makes it possible for unauthenticated attackers spoof their IP address and submit forms that may have IP-based restrictions.

Weakness: CWE-20

Which versions are affected by CVE-2024-13666?

How do I fix CVE-2024-13666?

No fix has been published for CVE-2024-13666 yet. Limit exposure of the affected software until one is available.

Is CVE-2024-13666 being exploited?

There is no known exploitation of CVE-2024-13666 in the wild and no public exploit code.

Sources

Also known as GHSA-ppvx-gqx9-qrq3.

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