CVE-2026-5396

HIGH EPSS 12.2%
Published May 14, 20261mo ago · Modified Jun 17, 20262w ago
8.2 CVSS 3.1
High
Find Similar
Published May 14, 2026 1mo ago
Last Modified Jun 17, 2026 2w ago

Description

The Fluent Forms plugin for WordPress is vulnerable to Authorization Bypass Through User-Controlled Key in all versions up to, and including, 6.1.21. This is due to the SubmissionPolicy class authorizing submission-level actions (read, modify, delete, add notes) based on a user-supplied `form_id` query parameter. This makes it possible for authenticated attackers, with Fluent Forms Manager access restricted to specific forms, to read, modify status, add notes to, and permanently delete form submissions belonging to any other form by spoofing the form_id parameter to a form they are authorized for.

CVSS Details

Base Score
8.2
Exploitability
3.9
Impact
4.2
Vector string
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N
Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction None
Scope Unchanged
Confidentiality High
Integrity Low
Availability None

Threat Intelligence

EPSS Exploit Probability
12.2% percentile
Exploit & Patch Status
No Known Exploit
No Patch Available

Weaknesses 1

CWE-639

References 2

  • plugins.trac.wordpress.org https://plugins.trac.wordpress.org/changeset?old_path=/fluentform/tags/6.1.21/app/Http/Policies/SubmissionPolicy.php&new_path=/fluentform/tags/6.2.0/app/Http/Policies/SubmissionPolicy.php
  • wordfence.com https://www.wordfence.com/threat-intel/vulnerabilities/id/81aad41e-0330-4dff-a5f8-08a108d724f5?source=cve

Remediation

No remediation data recorded yet

Check vendor advisories and the NVD entry for patch availability.