Unrated severityNVD Advisory· Published Jul 29, 2026· Updated Jul 29, 2026
Fluent Forms <= 6.2.7 - Unauthenticated Stored Cross-Site Scripting via Name Field Nested `password` Member
CVE-2026-16655
Description
The Fluent Forms – Customizable Contact Forms, Survey, Quiz, & Conversational Form Builder plugin for WordPress is vulnerable to Stored Cross-Site Scripting via Name Field Nested password Member in all versions up to, and including, 6.2.7 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.
Affected products
1- Range: <=6.2.7
Patches
Vulnerability mechanics
References
15- plugins.trac.wordpress.org/browser/fluentform/tags/6.2.6/app/Hooks/Ajax.phpmitre
- plugins.trac.wordpress.org/browser/fluentform/tags/6.2.6/app/Modules/Form/FormDataParser.phpmitre
- plugins.trac.wordpress.org/browser/fluentform/tags/6.2.6/app/Modules/SubmissionHandler/SubmissionHandler.phpmitre
- plugins.trac.wordpress.org/browser/fluentform/tags/6.2.6/app/Services/Form/SubmissionHandlerService.phpmitre
- plugins.trac.wordpress.org/browser/fluentform/tags/6.2.6/app/Services/Integrations/GlobalNotificationService.phpmitre
- plugins.trac.wordpress.org/browser/fluentform/tags/6.2.6/boot/globals.phpmitre
- plugins.trac.wordpress.org/browser/fluentform/tags/6.2.7/app/Hooks/Ajax.phpmitre
- plugins.trac.wordpress.org/browser/fluentform/tags/6.2.7/app/Modules/Form/FormDataParser.phpmitre
- plugins.trac.wordpress.org/browser/fluentform/tags/6.2.7/app/Modules/SubmissionHandler/SubmissionHandler.phpmitre
- plugins.trac.wordpress.org/browser/fluentform/tags/6.2.7/app/Services/Form/SubmissionHandlerService.phpmitre
- plugins.trac.wordpress.org/browser/fluentform/tags/6.2.7/app/Services/Integrations/GlobalNotificationService.phpmitre
- plugins.trac.wordpress.org/browser/fluentform/tags/6.2.7/boot/globals.phpmitre
- plugins.trac.wordpress.org/changeset/3619584/fluentform/trunk/boot/globals.phpmitre
- plugins.trac.wordpress.org/changesetmitre
- www.wordfence.com/threat-intel/vulnerabilities/id/635e19ba-da98-459c-ab91-ff969b0812fdmitre
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