CVE-2021-4365

Frontend File Manager <= 18.2 - Unauthenticated Stored Cross-Site Scripting

7.2 High

The Frontend File Manager plugin for WordPress is vulnerable to Unauthenticated Stored Cross-Site Scripting in versions up to, and including, 18.2. This is due to lacking authentication protections and santisation all on the wpfm_edit_file_title_desc AJAX action. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.

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: Low
Integrity: Low
Availability: None

Exploit likelihood

0.76%Up 0.7 points since Jun 7, 2023

What each source reports

CVE List Score used 7.2

Frontend File Manager <= 18.2 - Unauthenticated Stored Cross-Site Scripting

Record: CVE-2021-4365
CVSS 3.1: 7.2 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N
Weakness: CWE-79
Updated: 2026-11-02

EUVDEUVD-2021-34192 7.2

Record: EUVD-2021-34192
CVSS 3.1: 7.2 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N
Updated: 2026-11-02

GitHub AdvisoriesGHSA-j7rg-f8wp-8crf 7.2

The Frontend File Manager plugin for WordPress is vulnerable to Unauthenticated Stored Cross-Site...

Record: GHSA-j7rg-f8wp-8crf
CVSS 3.1: 7.2 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N
Weakness: CWE-79
Updated: 2026-11-02

NVD 7.2

Record: CVE-2021-4365
CVSS 3.1: 7.2 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N
CVSS 3.1: 6.1 MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Weakness: CWE-79
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-2021-4365 is a high vulnerability (CVSS 7.2) 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 0.76%, the 55th percentile. No source names a fixed version.