Fluent Forms Pro <= 6.1.17 - Unauthenticated Stored Cross-Site Scripting via Draft Form Submission

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
CVE CVE-2026-2365
CVSS High (7.2)
Publicly Published March 4, 2026
Last Updated March 5, 2026
Researcher Prickly Cactus
Description

The Fluent Forms Pro plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the `fluentform_step_form_save_data` AJAX action in all versions up to, and including, 6.1.17. This is due to the draft form submission endpoint being publicly accessible without authentication or nonce verification, combined with insufficient input sanitization and output escaping of form field data. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that will execute whenever an administrator views a partial form entry.

References

1 affected software package

Software Type Plugin
Software Slug fluentformpro (view on wordpress.org)
Patched? Yes
Affected Version
  • <= 6.1.17
Patched Version
  • 6.1.18
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