CVE-2026-6828
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…
Does this matter?
Lower severity and a low EPSS score (0.20%). Track it; it rarely justifies an emergency change on its own.
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.
- CVSS 3.1
- 6.4 MEDIUMCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N
- EPSS
- 0.20% probability · 10th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-79
- Source
- security@wordfence.com
References
- https://plugins.trac.wordpress.org/browser/fluentform/tags/6.1.20/app/Modules/Component/Component.php#L467
- https://plugins.trac.wordpress.org/browser/fluentform/tags/6.1.20/app/Modules/Component/Component.php#L513
- https://plugins.trac.wordpress.org/browser/fluentform/trunk/app/Modules/Component/Component.php#L467
- https://plugins.trac.wordpress.org/browser/fluentform/trunk/app/Modules/Component/Component.php#L513
- https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&old=3513845%40fluentform&new=3513845%40fluentform&sfp_email=&sfph_mail=
- https://www.wordfence.com/threat-intel/vulnerabilities/id/ce2d2594-e856-4249-9467-01c0fe1c0c71?source=cve
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.