CVE-2026-16655

Received Received - Intake

Stored XSS in Fluent Forms WordPress Plugin

Publication date: 2026-07-29

Last updated on: 2026-07-29

Assigner: Wordfence

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.

CVSS Scores

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Meta Information

Published

2026-07-29

Last Modified

2026-07-29

Generated

2026-08-19

AI Q&A

2026-07-30

EPSS Evaluated

2026-08-18

NVD

CVE-2026-16655

Affected Vendors & Products

Vendor	Product	Version / Range
wpmet	fluent_forms	to 6.2.7 (inc)

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-79	The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.

Attack-Flow Graph

Executive Summary

This vulnerability is a Stored Cross-Site Scripting (XSS) flaw in the Fluent Forms WordPress plugin. It allows unauthenticated attackers to inject malicious scripts via the Name Field's nested password member due to poor input sanitization and output escaping. The scripts execute when users access an infected page.

Detection Guidance

This vulnerability involves Stored Cross-Site Scripting via the Name Field in the Fluent Forms plugin. Detection requires checking for malicious scripts in form submissions or database entries. Inspect WordPress sites using this plugin for unusual form inputs or scripts in the 'Name Field' or 'password' member fields. No specific commands are provided in the context.

Impact Analysis

Unauthenticated attackers could inject harmful scripts into your website. When visitors access the compromised page, the scripts may steal cookies, session tokens, or redirect users to malicious sites. It could also deface your site or spread malware to visitors.

Compliance Impact

This vulnerability could lead to data breaches, violating GDPR's data protection requirements or HIPAA's safeguards for protected health information. Non-compliance may result in legal penalties, fines, or reputational damage due to unauthorized access to user data.

Mitigation Strategies

Update the Fluent Forms plugin to the latest version beyond 6.2.7. If unable to update, consider disabling the plugin temporarily until a patch is applied.

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