What is the CVSS score of CVE-2021-4368?

CVE-2021-4368 has a CVSS 3.1 base score of 9.9 (Critical). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H. EPSS exploitation probability: 7.2%.

Is there a public PoC exploit available for CVE-2021-4368?

Yes, a public proof-of-concept exploit is available for CVE-2021-4368. Prioritise patching immediately. EPSS: 7.2%.

Is there a patch available for CVE-2021-4368?

Yes, a patch is available for CVE-2021-4368. Update the affected software to the latest version immediately.

Frontend File Manager Plugin CVE-2021-4368

CRITICAL

Missing Authorization (CWE-862)

2023-06-07 security@wordfence.com

RCE WordPress Authentication Bypass Frontend File Manager Plugin

9.9

CVSS 3.1 · NVD

Severity by source

NVD PRIMARY

9.9 CRITICAL

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

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

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

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Changed

Confidentiality

High

Integrity

High

Availability

High

Lifecycle Timeline

Patch released

Apr 08, 2026 - 19:38 nvd

Patch available

PoC Detected

Apr 08, 2026 - 19:17 vuln.today

Public exploit code

CVE Published

Jun 07, 2023 - 02:15 nvd

CRITICAL 9.9

DescriptionCVE.org

The Frontend File Manager plugin for WordPress is vulnerable to Authenticated Settings Change in versions up to, and including, 18.2. This is due to lacking capability checks and a security nonce, all on the wpfm_save_settings AJAX action. This makes it possible for subscriber-level attackers to edit the plugin settings, such as the allowed upload file types. This can lead to remote code execution through other vulnerabilities.

AnalysisAI

The Frontend File Manager plugin for WordPress is vulnerable to Authenticated Settings Change in versions up to, and including, 18.2. Rated critical severity (CVSS 9.9), this vulnerability is remotely exploitable, low attack complexity. Public exploit code available.

Technical ContextAI

This vulnerability is classified as Missing Authorization (CWE-862), which allows attackers to access resources or perform actions without proper authorization checks. The Frontend File Manager plugin for WordPress is vulnerable to Authenticated Settings Change in versions up to, and including, 18.2. This is due to lacking capability checks and a security nonce, all on the wpfm_save_settings AJAX action. This makes it possible for subscriber-level attackers to edit the plugin settings, such as the allowed upload file types. This can lead to remote code execution through other vulnerabilities. Affected products include: Najeebmedia Frontend File Manager Plugin.

RemediationAI

A vendor patch is available. Apply the latest security update as soon as possible. Implement role-based access control, validate authorization on every request server-side, apply principle of least privilege.