Vulnerability · Published Aug 1, 2026 · Assigned by Wordfence
CVE-2026-17571Fluent Forms <= 6.2.8 - Reflected Cross-Site Scripting via 'param'
Medium 6.1
In plain English
A medium-severity cross-site scripting in Fluent Forms – Customizable Contact Forms, Survey, Quiz, & Conversational Form Builder from wpmanageninja. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.4% (higher than 31% of all known vulnerabilities).
Official description
The Fluent Forms – Customizable Contact Forms, Survey, Quiz, & Conversational Form Builder plugin for WordPress is vulnerable to Reflected Cross-Site Scripting via 'param' in all versions up to, and including, 6.2.8 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that execute if they can successfully trick a user into performing an action such as clicking on a link.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| wpmanageninja | Fluent Forms – Customizable Contact Forms, Survey, Quiz, & Conversational Form Builder | 0 – through 6.2.8 |
Weakness: CWE-79 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
References
- https://www.wordfence.com/threat-intel/vulnerabilities/id/547008fe-2585-4089-a710-71a83ae3d829?source=cve
- https://plugins.trac.wordpress.org/browser/fluentform/tags/6.2.8/app/Modules/Component/Component.php#L1456
- https://plugins.trac.wordpress.org/browser/fluentform/tags/6.2.8/app/Modules/Component/Component.php#L1452
- https://plugins.trac.wordpress.org/changeset?old_path=%2Ffluentform/tags/6.2.8&new_path=%2Ffluentform/tags/6.2.9
- https://plugins.trac.wordpress.org/changeset/3625751/fluentform/trunk/app/Modules/Component/Component.php