WordPress Fluent Forms plugin <= 6.2.11 - Unauthenticated Stored Cross-Site Scripting via Notification Smartcode Values vulnerability

Unauthenticated Stored Cross-Site Scripting via Notification Smartcode Values vulnerability discovered by Adrien Brunner in WordPress Plugin FluentForm versions = 6.2.11...

CVE-2026-18146

The Fluent Forms – Customizable Contact Forms, Survey, Quiz, & Conversational Form Builder plugin for WordPress is vulnerable to Stored Cross-Site Scripting via Notification Smartcode Values in all versions up to, and including, 6.2.11 due to insufficient input sanitization and output escaping...

CVE-2026-18146 Fluent Forms <= 6.2.11 - Unauthenticated Stored Cross-Site Scripting via Notification Smartcode Values

The Fluent Forms – Customizable Contact Forms, Survey, Quiz, & Conversational Form Builder plugin for WordPress is vulnerable to Stored Cross-Site Scripting via Notification Smartcode Values in all versions up to, and including, 6.2.11 due to insufficient input sanitization and output escaping...

CVE-2026-18146

The CVE-2026-18146 entry concerns the Fluent Forms WordPress plugin (versions ≤ 6.2.11). It describes a Stored Cross‑Site Scripting vulnerability caused by insufficient input sanitization and output escaping in Notification Smartcode Values, enabling unauthenticated attackers to inject scripts th...