CVE-2026-16655: Fluent Forms <= 6.2.7 - Unauthenticated Stored Cross-Site Scripting via Name Field Nested `password` Member
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 Software
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade
WordPress plugin: Fluent Forms – Customizable Contact Forms, Survey, Quiz, & Conversational Form Builderto a version that resolves this vulnerability.Fixed in 6.2.7
Event History
Frequently Asked Questions
What is the risk level of CVE-2026-16655?
CVE-2026-16655 has a risk level of 44 and is classified as high severity with a score of 7.2.
What type of vulnerability is CVE-2026-16655?
CVE-2026-16655 is an unauthenticated stored Cross-Site Scripting (XSS) vulnerability.
Which versions of Fluent Forms are affected by CVE-2026-16655?
CVE-2026-16655 affects all versions of Fluent Forms up to and including 6.2.7.
How can I mitigate the risk associated with CVE-2026-16655?
To mitigate CVE-2026-16655, update Fluent Forms to the latest version that addresses the vulnerability.
What causes the vulnerability in CVE-2026-16655?
CVE-2026-16655 is caused by insufficient input sanitization and output escaping in the plugin.