CVE-2025-57921
Official description Straight from the sourceThe vendor's or NVD's own wording, published unedited. Authoritative, but often terse — it says what broke, rarely what to do.
NVD · uneditedMissing Authorization vulnerability in N-Media Frontend File Manager nmedia-user-file-uploader allows Exploiting Incorrectly Configured Access Control Security Levels.This issue affects Frontend File Manager: from n/a through <= 23.3.
Technical summary Written by usOur analysis, written from the advisory, the CVSS vector and the affected-version data. It adds context the advisory leaves out, and never invents facts that are not in the source.
dbcve analysis · moderate confidenceMissing authorization in the N-Media Frontend File Manager plugin (nmedia-user-file-uploader) allows attackers to exploit incorrectly configured access control security levels, potentially enabling unauthorized file access or manipulation without proper authentication or privilege validation.
Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.
CVSS breakdown How the score is builtThe industry scoring standard. It rates how the flaw is reached, what it takes to exploit, and what an attacker gains — the score is derived from those, not the other way round.
From the vector- Attack vector
- Network
- Complexity
- Low
- Privileges
- None
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- None
- Integrity
- Low
- Availability
- None
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
Am I affected? How to checkSteps we derive from the advisory and the affected-version data, so you can decide whether this CVE reaches your setup. They are a guide, not a scan — your own configuration is the authority.
dbcve checksWork through these to decide whether this CVE applies to you.
-
Verify plugin installationLocate the nmedia-user-file-uploader plugin in wp-content/plugins/ or check via WordPress admin plugin listAffected if Plugin is installed and active
-
Identify installed versionRead the main plugin file (usually plugin-name.php) to find the Version header, or check the plugin directory for a version constantAffected if Version cannot be determined or is within an affected range
-
Test unauthenticated file accessAttempt to access file management endpoints (e.g., file download, upload, or delete URLs) without providing authentication credentialsAffected if Endpoints return valid responses without requiring login or valid authorization tokens
-
Check for privilege escalationCreate a low-privilege user account and attempt to access or manipulate files belonging to another user via the plugin interfacesAffected if Access is granted without proper ownership or role validation
User is affected if the N-Media Frontend File Manager plugin is installed and unauthenticated or low-privilege users can access/modify files without proper authorization checks.
Generated from the published advisory. Verify against your own configuration.
Remediation Closing itWhat it takes to close this. Where a vendor fix exists we point at it; where none exists we say so plainly, and can build one. Effort estimates are scoped from the advisory, not from your codebase.
dbcve · scopedImplement proper role-based authorization checks on all file management endpoints and functions to enforce correct access control security levels.
Update to the latest available version of N-Media Frontend File Manager (version > 23.3)
- 1. Navigate to the WordPress admin dashboard
- 2. Go to Plugins > Installed Plugins
- 3. Locate 'N-Media Frontend File Manager' (nmedia-user-file-uploader)
- 4. Check if an update is available for the plugin
- 5. If an update is available, update to the latest version to resolve the missing authorization vulnerability
- 6. Verify the update was successful and test file upload functionality
Generated from the published advisory — verify against the referenced sources before acting.
- Consultation4.0 h
- Implementation16.0 h
- Testing8.0 h
- Review / QA4.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $8,960.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2025-57921 — or any other known-vulnerable package — straight from your lock files. Free and open source; it runs locally and uploads nothing.
References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.
Primary sourcesPractitioner notes
ContributedPeer-ranked notes from engineers who’ve handled CVE-2025-57921 in production — separate from our analysis above.
The advisory tells you what broke. It rarely tells you what actually worked. If you’ve dealt with this one, that detail is what the next engineer is searching for.
- The version that genuinely resolved it — not the one the vendor claimed
- A config change or rule that shut the vector down
- A gotcha in the upgrade path that cost you an afternoon
No notes yet
Be the first to add a field note for this CVE — a mitigation you’ve verified, a version caveat, or a link to a working fix. Sign in above to contribute.
A place for practitioners to share what actually worked: a mitigation you’ve tested, a configuration change, a version- or environment-specific caveat, or a link to a verified patch. The most useful notes rise to the top as peers upvote them, so the signal stays high.
- Verified mitigations, workarounds, and config changes
- Version or environment caveats, and links to real fixes
- No weaponised exploit code, or anything meant to cause harm
- No spam, self-promotion, credentials, or personal data