What’s Vulnerable › Vulnerabilities

CVE-2026-0996: Fluent Forms <= 6.1.14 - Authenticated (Subscriber+) Stored Cross-Site Scripting via AI Form Builder Module

• Severity: medium (CVSS 6.4 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.3% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-02-10 · updated 2026-06-17
• Weakness: CWE-79

Description

The Fluent Forms plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the AI Form Builder module in all versions up to, and including, 6.1.14 due to a combination of missing authorization checks, a leaked nonce, and insufficient input sanitization. The vulnerability allows Subscriber-level users to trigger AI form generation via a protected endpoint. When prompted, AI services will typically return bare JavaScript code (without <script> tags), which bypasses the plugin's sanitization. This stored JavaScript executes whenever anyone views the generated form, making it possible for authenticated attackers with Subscriber-level access and above to inject arbitrary web scripts that will execute in the context of any user accessing the form.

Affected products

• techjewel Fluent Forms – Customizable Contact Forms, Survey, Quiz, & Conversational Form Builder: through 6.1.14

References

• https://plugins.trac.wordpress.org/browser/fluentform/tags/6.1.12/app/Hooks/actions.php#L641
• https://plugins.trac.wordpress.org/browser/fluentform/tags/6.1.12/app/Modules/Ai/AiFormBuilder.php#L29
• https://plugins.trac.wordpress.org/browser/fluentform/tags/6.1.12/app/Modules/Ai/AiFormBuilder.php#L334
• https://plugins.trac.wordpress.org/browser/fluentform/tags/6.1.12/boot/globals.php#L438
• https://plugins.trac.wordpress.org/changeset/3449710/fluentform/trunk/app/Hooks/actions.php
• https://www.wordfence.com/threat-intel/vulnerabilities/id/00192a36-4b75-4dae-9a6e-0afb02ed5bad?source=cve

Get alerted when CVE-2026-0996 or the next vulnerability affects your stack