The Fluent Forms – Customizable Contact Forms, Survey, Quiz, & Conversational Form Builder plugin for WordPress is vulnerable to Reflected Cross-Site Scripting via the 'any attacker-chosen name matching the {get.NAME} placeholder (PoC uses 'proof')' parameter in all versions up to, and including, 6.2.14 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. Exploitation requires a site administrator to have configured a Custom HTML field on a published form containing a {get.*} SmartCode inside a URL-accepting attribute such as iframe src or a href — a documented Fluent Forms feature.
Fix
Nothing published yet: no patch, vendor advisory or mitigation reference on NVD, no vendor advisory in the News for this CVE, not in CISA's KEV, no fixed package version. BaselineWatch does not guess at one.
Change history 1
- First seenCVSS 4.7NVD modified 2026-10-13 13:29
Affected (CPE criteria) 0
NVD has not attached CPE configurations yet.
References 8
- https://plugins.trac.wordpress.org/browser/fluentform/tags/6.2.14/app/Modules/Component/Component.php#L890
- https://plugins.trac.wordpress.org/browser/fluentform/tags/6.2.14/app/Services/FormBuilder/Components/CustomHtml.php#L40
- https://plugins.trac.wordpress.org/browser/fluentform/tags/6.2.14/app/Services/FormBuilder/EditorShortcodeParser.php#L169
- https://plugins.trac.wordpress.org/browser/fluentform/tags/6.2.14/app/Services/FormBuilder/EditorShortcodeParser.php#L78
- https://plugins.trac.wordpress.org/browser/fluentform/tags/6.2.14/boot/globals.php#L326
- https://plugins.trac.wordpress.org/changeset/3721107/fluentform/trunk/app/Modules/Component/Component.php
- https://wordpress.org/plugins/fluentform/
- https://www.wordfence.com/threat-intel/vulnerabilities/id/4b28ac94-fc84-4560-bffd-273566cc0f91?source=cve