Vulnerability 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 Score
MEDIUM
Related Weaknesses (CWE)
References
- https://plugins.trac.wordpress.org/browser/fluentform/tags/6.1.20/app/Modules/Co
- https://plugins.trac.wordpress.org/browser/fluentform/tags/6.1.20/app/Modules/Co
- https://plugins.trac.wordpress.org/browser/fluentform/trunk/app/Modules/Componen
- https://plugins.trac.wordpress.org/browser/fluentform/trunk/app/Modules/Componen
- https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&old
- https://www.wordfence.com/threat-intel/vulnerabilities/id/ce2d2594-e856-4249-946
FAQ
What is CVE-2026-6828?
CVE-2026-6828 is a vulnerability with a CVSS score of 6.4 (MEDIUM). 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 a...
How severe is CVE-2026-6828?
CVE-2026-6828 has been rated MEDIUM with a CVSS base score of 6.4/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-6828?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.