CVE-2026-101324: CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') in wpmanageninja Fluent Forms – Customizable Contact Forms, Survey, Quiz, & Conversational Form Builder

The Fluent Forms – Customizable Contact Forms, Survey, Quiz, & Conversational Form Builder plugin for WordPress is vulnerable to reflected cross-site scripting (CWE-79) via parameters matching the {get.NAME} placeholder. This vulnerability affects all versions up to and including 6.2.14. It results from insufficient input sanitization and output escaping, allowing unauthenticated attackers to inject arbitrary web scripts. Successful exploitation requires that a site administrator has configured a Custom HTML field on a published form containing a {get.*} SmartCode inside URL-accepting attributes such as iframe src or a href, which is a documented feature of Fluent Forms. The vulnerability allows script execution when a user clicks a crafted link, potentially leading to limited confidentiality and integrity impact.

An attacker can inject and execute arbitrary scripts in the context of the vulnerable site, potentially leading to limited confidentiality and integrity impacts. The vulnerability requires user interaction (clicking a crafted link) and a specific configuration by a site administrator. There is no indication of availability impact. No known exploits in the wild have been reported.

Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until a fix is available, administrators should avoid configuring Custom HTML fields with {get.*} SmartCodes inside URL-accepting attributes such as iframe src or a href. Monitor vendor channels for updates and apply official patches once released.