What is CVE-2021-4356?

CVE-2021-4356 is a critical-severity vulnerability in Nmedia Frontend File Manager Plugin, classified under Missing Authorization. CVSS score: 9.0/10. Published 2023-06-07.

How severe is CVE-2021-4356?

Critical severity. CVSS v3 base score is 9.0 out of 10.

Is CVE-2021-4356 known to be exploited?

1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Auth bypass in Nmedia Frontend File Manager Plugin

CVE-2021-4356

The Frontend File Manager plugin for WordPress is vulnerable to Unauthenticated Arbitrary File Download in versions up to, and including, 18.2. This is due to lacking authentication protections, capability checks, and sanitization, all o…

Vulnerability class: Broken Access Control

EPSS: 0.007 (73.4th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.0 (Critical). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H.

Affected products

Nmedia Frontend File Manager Plugin — versions 0

Weakness classification (CWE)

CWE-862 — Missing Authorization

Public proof-of-concept exploits

20142995/nuclei-templates

References

Frequently asked questions

What is CVE-2021-4356?: CVE-2021-4356 is a critical-severity vulnerability in Nmedia Frontend File Manager Plugin, classified under Missing Authorization. CVSS score: 9.0/10. Published 2023-06-07.
How severe is CVE-2021-4356?: Critical severity. CVSS v3 base score is 9.0 out of 10.
Is CVE-2021-4356 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.