CVE-2024-6521 Cross-site scripting in Fluent Forms – Customizable Contact Forms, Survey, Quiz, & Conversational Form Builder

Medium 4.4 Published Updated

Administrators can inject scripts via dropdown fields in Fluent Forms, affecting multi-site or restricted HTML installations.

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

What is CVE-2024-6521?

CVE-2024-6521 is a medium-severity cross-site scripting vulnerability in techjewel Fluent Forms – Customizable Contact Forms, Survey, Quiz, & Conversational Form Builder, published on 27 Jul 2024. An attacker needs administrator access to exploit it, with no action from the victim.

Official description

The Contact Form Plugin by Fluent Forms for Quiz, Survey, and Drag & Drop WP Form Builder plugin for WordPress is vulnerable to Stored Cross-Site Scripting via dropdown fields in all versions up to, and including, 5.1.19 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with administrator-level permissions and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. This only affects multi-site installations and installations where unfiltered_html has been disabled.

Weakness: CWE-79

Which versions are affected by CVE-2024-6521?

It affects 1 product.

Products include Fluentforms Contact Form.

How do I fix CVE-2024-6521?

No fix has been published for CVE-2024-6521 yet. Limit exposure of the affected software until one is available.

Escape output for the context it lands in and set a strict Content Security Policy. Upgrading the affected component is the real fix. More about Cross-site scripting.

Is CVE-2024-6521 being exploited?

There is no known exploitation of CVE-2024-6521 in the wild and no public exploit code.

Sources

Also known as GHSA-8xhf-5jm8-p7c7.

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