CVE-2026-6828

MEDIUM EPSS 10.1%
Published May 13, 20261mo ago · Modified Jun 17, 20261w ago
6.4 CVSS 3.1
Medium
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Published May 13, 2026 1mo ago
Last Modified Jun 17, 2026 1w ago

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 Details

Base Score
6.4
Exploitability
3.1
Impact
2.7
Vector string
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N
Attack Vector Network
Attack Complexity Low
Privileges Required Low
User Interaction None
Scope Changed
Confidentiality Low
Integrity Low
Availability None

Threat Intelligence

EPSS Exploit Probability
10.1% percentile
Exploit & Patch Status
No Known Exploit
No Patch Available

Weaknesses 1

CWE-79 Cross-site Scripting Injection

References 6

  • plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/fluentform/tags/6.1.20/app/Modules/Component/Component.php#L467
  • plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/fluentform/tags/6.1.20/app/Modules/Component/Component.php#L513
  • plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/fluentform/trunk/app/Modules/Component/Component.php#L467
  • plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/fluentform/trunk/app/Modules/Component/Component.php#L513
  • plugins.trac.wordpress.org https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&old=3513845%40fluentform&new=3513845%40fluentform&sfp_email=&sfph_mail=
  • wordfence.com https://www.wordfence.com/threat-intel/vulnerabilities/id/ce2d2594-e856-4249-9467-01c0fe1c0c71?source=cve

Remediation

No remediation data recorded yet

Check vendor advisories and the NVD entry for patch availability.