CVE-2021-4369

Frontend File Manager <= 18.2 - Unauthenticated Content Injection

5.8 Medium

The Frontend File Manager plugin for WordPress is vulnerable to Unauthenticated Content Injection in versions up to, and including, 18.2. This is due to lacking authorization protections, checks against users editing other's posts, and lacking a security nonce, all on the wpfm_edit_file_title_desc AJAX action. This makes it possible for unauthenticated attackers to edit the content and title of every page on the site.

Attack profile

How easy it is to exploit

Attack vector: Network
Complexity: Low
Privileges needed: None
User interaction: None

What an attacker can affect

Confidentiality: None
Integrity: Low
Availability: None

Exploit likelihood

0.80%Up 0.8 points since Jun 7, 2023

What each source reports

CVE List Score used 5.8

Frontend File Manager <= 18.2 - Unauthenticated Content Injection

Record: CVE-2021-4369
CVSS 3.1: 5.8 MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:N
Weakness: CWE-862
Updated: 2026-11-02

EUVDEUVD-2021-34196 5.8

Record: EUVD-2021-34196
CVSS 3.1: 5.8 MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:N
Updated: 2026-11-02

GitHub AdvisoriesGHSA-xcp4-vpmq-w2pr 5.8

The Frontend File Manager plugin for WordPress is vulnerable to Unauthenticated Content Injection...

Record: GHSA-xcp4-vpmq-w2pr
CVSS 3.1: 5.8 MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:N
Weakness: CWE-862
Updated: 2026-11-02

NVD 5.8

Record: CVE-2021-4369
CVSS 3.1: 5.8 MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:N
CVSS 3.1: 5.3 MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
Weakness: CWE-862
Updated: 2026-11-02

Affected products

History

History
Recorded	Changed	Sources
Nov 2, 2026	first indexed	CVE List, EUVD, GitHub Advisories, NVD

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2021-4369 is a medium vulnerability (CVSS 5.8) in Najeebmedia Frontend File Manager Plugin, published June 7, 2023. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.80%, the 56th percentile. No source names a fixed version.