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CVE-2026-5396 - Vulnerability Analysis

HighCVSS: 8.2

Last Updated: May 14, 2026

Fluent Forms WordPress plugin - Authorization Bypass

Published: May 14, 2026Updated: May 14, 2026Remote Exploitable

Overview

Fluent Forms WordPress plugin <= 6.1.21 contains an authorization bypass through user-controlled form_id parameter in SubmissionPolicy class, letting authenticated attackers with limited form access read, modify, add notes, and delete submissions of other forms.

Severity & Score

Severity: High
CVSS Score: 8.2
EPSS Score: 3.0%(Probability of exploitation in next 30 days)

Impact

Authenticated attackers can read, modify, add notes, and delete submissions of any form, leading to data tampering and unauthorized access.

Mitigation

Update to the latest version beyond 6.1.21.

Social Media Activity(2 posts)

TheHackerWire
TheHackerWire
@thehackerwire
May 14, 2026

🟠 CVE-2026-5396 - High (8.2) 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, del... šŸ”— https://www.thehackerwire.com/vulnerability/CVE-2026-5396/ #CVE #vulnerability #infosec #cybersecurity #security #Tenda #patchstack

View original post
TheHackerWire
TheHackerWire
@thehackerwire
May 14, 2026

🟠 CVE-2026-5396 - High (8.2) 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, del... šŸ”— https://www.thehackerwire.com/vulnerability/CVE-2026-5396/ #CVE #vulnerability #infosec #cybersecurity #security #Tenda #patchstack

View original post

Details

CVE ID
CVE-2026-5396
Severity
High
CVSS Score
8.2
Type
broken_access_control
Status
rejected
EPSS
3.0%
Social Posts
2

CWE

  • CWE-639

CVSS Metrics

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N

EPSS Score

3.0%Probability of exploitation in the next 30 days