What the vulnerability does
01Description
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.
Explanation of Vulnerability in Simple Terms
02Summary
Fluent Forms versions 6.1.14 and earlier contain a cross-site scripting (XSS) vulnerability that allows authenticated users to inject malicious scripts. The vulnerability has a changed scope, meaning injected code can affect other users or site functionality beyond the vulnerable component. An attacker with low-level account access can craft malicious input that executes in other users' browsers when they interact with affected forms.
What an attacker can do
03Attacker Capabilities
Inject malicious JavaScript that runs in other users' browsers, potentially stealing session tokens or form data.
Potential impact on your site
04Site Impact
Form submissions and user interactions may be compromised; visitor data and admin sessions at risk if admins view affected forms.
Conditions required to exploit
05Prerequisites
Attacker must have a low-privilege account on the site; no user interaction required from the victim.
Key dates
06Disclosure timeline
February 10, 2026
CVE published
April 8, 2026
Record updated
