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

2026-03-04 14:28

Prickly Cactus

Strategic Overview

Status

Patched in 6.1.18

Affected PluginFluent Forms Pro Add On Pack

Affected Version<= 6.1.17

CVSS7.2High

CVECVE-2026-2365

View all Fluent Forms Pro Add On Pack vulnerabilities

Vulnerability Overview

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.

Technical Analysis

REMEDIATION: Update to version 6.1.18, or a newer patched version --- IDENTIFIER: CWE-79 (Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')) 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.

External References

https://www.cve.org/CVERecord?id=CVE-2026-2365 https://www.wordfence.com/threat-intel/vulnerabilities/id/5e911b0a-a236-4df3-b997-3631412a1b55

CVSS Vector

7.2

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N

Base

Attack VectorNetwork
Attack ComplexityLow
Privileges RequiredNone
User InteractionNone
ScopeChanged
ConfidentialityLow
IntegrityLow
AvailabilityNone

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