Frontend File Manager <= 18.2 - Unauthenticated Arbitrary File Download
Summary
| CVE | CVE-2021-4356 |
|---|---|
| State | PUBLISHED |
| Assigner | Wordfence |
| Source Priority | CVE Program / NVD first with legacy fallback |
| Published | 2023-06-07 02:15:14 UTC |
| Updated | 2026-04-08 18:17:15 UTC |
| 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. |
Risk And Classification
Primary CVSS: v3.1 9.8 CRITICAL from [email protected]
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Problem Types: CWE-862 | CWE-862 CWE-862 Missing Authorization
| Version | Source | Type | Score | Severity | Vector |
|---|---|---|---|---|---|
| 3.1 | [email protected] | Primary | 9.8 | CRITICAL | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| 3.1 | [email protected] | Secondary | 9 | CRITICAL | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H |
| 3.1 | CNA | DECLARED | 9 | CRITICAL | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H |
CVSS v3.1 Breakdown
Attack Vector
NetworkAttack Complexity
LowPrivileges Required
NoneUser Interaction
NoneScope
UnchangedConfidentiality
HighIntegrity
HighAvailability
HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
NVD Known Affected Configurations (CPE 2.3)
| Type | Vendor | Product | Version | Update | Edition | Language |
|---|---|---|---|---|---|---|
| Application | Najeebmedia | Frontend File Manager Plugin | All | All | All | All |
Vendor Declared Affected Products
| Source | Vendor | Product | Version | Platforms |
|---|---|---|---|---|
| CNA | Nmedia | Frontend File Manager Plugin | affected 18.3 semver | Not specified |
References
| Reference | Source | Link | Tags |
|---|---|---|---|
| WordPress Frontend File Manager plugin fixed multiple critical vulnerabilities. – NinTechNet | af854a3a-2127-422b-91ae-364da2661108 | blog.nintechnet.com | Exploit |
| 403 Forbidden | af854a3a-2127-422b-91ae-364da2661108 | plugins.trac.wordpress.org | Patch |
| Frontend File Manager <= 18.2 - Unauthenticated Arbitrary File Download | af854a3a-2127-422b-91ae-364da2661108 | www.wordfence.com | Third Party Advisory |
| CVE Program record | CVE.ORG | www.cve.org | canonical |
| NVD vulnerability detail | NVD | nvd.nist.gov | canonical, analysis |
Vendor Comments And Credit
Discovery Credit
CNA: Jerome Bruandet (en)
Additional Advisory Data
| Source | Time | Event |
|---|---|---|
| CNA | 2021-07-12T00:00:00.000Z | Disclosed |
There are currently no legacy QID mappings associated with this CVE.