PT-2026-40561 · WordPress · Fluent Forms

Djaidja Moundjid · Published 2026-05-13 · Updated 2026-05-13 · CVE-2026-6828

Positive Technologies (AI Summary)

CVSS v3.1

6.4

Medium

Base vector

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

Name of the Vulnerable Software and Affected Versions Fluent Forms versions prior to 6.2.2

Description The Fluent Forms – Customizable Contact Forms, Survey, Quiz, & Conversational Form Builder plugin for WordPress contains a Stored Cross-Site Scripting issue. This occurs due to insufficient input sanitization and output escaping within the permission message parameter. Authenticated attackers with contributor-level access or higher can inject arbitrary web scripts into pages, which then execute when a user visits the affected page.

Recommendations Update to a version later than 6.2.1. As a temporary workaround, restrict the use of the permission message parameter until the update is applied.

Fix

XSS

Weakness Enumeration

CWE-79

Related Identifiers

CVE-2026-6828

Affected Products

Fluent Forms

References · 8

• https://nvd.nist.gov/vuln/detail/CVE-2026-6828 · Security Note
• https://wordfence.com/threat-intel/vulnerabilities/id/ce2d2594-e856-4249-9467-01c0fe1c0c71?source=cve · Note
• https://plugins.trac.wordpress.org/browser/fluentform/trunk/app/Modules/Component/Component.php#L513 · Note
• https://plugins.trac.wordpress.org/browser/fluentform/tags/6.1.20/app/Modules/Component/Component.php#L513 · Note
• https://plugins.trac.wordpress.org/browser/fluentform/trunk/app/Modules/Component/Component.php#L467 · Note
• https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&old=3513845%40fluentform&new=3513845%40fluentform&sfp_email=&sfph_mail= · Note
• https://plugins.trac.wordpress.org/browser/fluentform/tags/6.1.20/app/Modules/Component/Component.php#L467 · Note
• https://t.me/CVEtracker/53607 · Telegram Post