CVE-2021-4356 — Missing Authorization in Frontend File Manager Plugin

CWE-862 — Missing AuthorizationCWE-401 — Missing Release of Memory after Effective Lifetime5 documents5 sources
Severity
9.8CRITICALNVD
CNA9.0
EPSS
0.7%
top 27.01%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
2
Nmedia Frontend File Manager PluginNajeebmedia Frontend File Manager Plugin
Timeline
PublishedJun 7
Latest updateJun 18

Description

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 on the wpfm_file_meta_update AJAX action. This makes it possible for unauthenticated attackers to download arbitrary files on the site, potentially leading to site takeover.

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HExploitability: 3.9 | Impact: 5.9

Affected Packages2 packages

Patches

Patch: plugins.trac.wordpress.org ↗Patch: plugins.trac.wordpress.org ↗

🔴Vulnerability Details

2
CVEList
Frontend File Manager <= 18.2 - Unauthenticated Arbitrary File Download↗2023-06-07
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GHSA
GHSA-538r-g5r4-2c2w: The Frontend File Manager plugin for WordPress is vulnerable to Unauthenticated Arbitrary File Download in versions up to, and including, 18↗2023-06-07
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📋Vendor Advisories

1
Red Hat
kernel: net: genl: fix error path memory leak in policy dumping↗2025-06-18
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💬Community

1
Bugzilla
CVE-2021-47080 kernel: RDMA/core: Prevent divide-by-zero error triggered by the user↗2024-03-03
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CVE-2021-4356 — Missing Authorization | cvebase