CVE-2026-6828

MEDIUM

Fluent Forms <= 6.2.1 - Authenticated (Contributor+) Stored Cross-Site Scripting via 'permission_message' Shortcode Attribute

Title source: CVE List
STIX 2.1 vulnerability

Record summary

CVE-2026-6828 has a selected CVSS score of 6.4 (medium).

Description

The Fluent Forms – Customizable Contact Forms, Survey, Quiz, & Conversational Form Builder plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'permission_message' parameter in all versions up to, and including, 6.2.1 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.

Description source: CVE List

Exploitation context

CISA SSVC decision

ExploitationNone
AutomatableNo
Technical impactPartial

CISA Coordinator · SSVC 2.0.3 · Evaluated May 13, 2026 · Source: CVE List

Affected products and versions

1
ProductSourceVersion range

Fluent Forms – Customizable Contact Forms, Survey, Quiz, & Conversational Form Builder

Browse techjewel / Fluent Forms – Customizable Contact Forms, Survey, Quiz, & Conversational Form Builder

Default status: unaffected

CVE ListThrough 6.2.1affected

References

4