VoyagerApplication · Thecontrolgroup

CVE-2020-36070

CRITICAL · 9.8 CVSS v3.1 Published 2023-04-26
Fix available
A fix is available. Upgrade to 1.4.0 or later.
See remediation →
100/100
Remediation priority · Urgent
Remotely reachable No privileges Zero-click

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 · unedited
Insecure Permission vulnerability found in Yoyager v.1.4 and before allows a remote attacker to execute arbitrary code via a crafted .php file to the media component.

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 confidence

Insecure permission controls in Voyager v1.4 and earlier allow unauthenticated remote attackers to upload malicious PHP files through the media component, achieving arbitrary code execution on the server.

MitigationUpgrade Voyager to the latest patched version immediately. If upgrading is not immediately feasible, disable or restrict access to the media component and implement strict authentication on any file upload endpoints.

Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.

Affected products & versions What the vendor confirmedThe version ranges the vendor confirmed as vulnerable. If your version sits inside a range here, treat yourself as exposed until you have upgraded.

NVD · CPE data
VoyagerApplication
Affected:< 1.4.0

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
High
Integrity
High
Availability
High

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

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 checks

Work through these to decide whether this CVE applies to you.

  1. Check Voyager installed version
    Locate the composer.json file in your Laravel project root and find the 'thecontrolgroup/voyager' entry under 'require'. Alternatively, check the version in vendor/thecontrolgroup/voyager/composer.json
    Affected if The version listed is less than 1.4.0 (e.g., 1.3.x, 1.2.x, etc.)
  2. Verify media component is installed and enabled
    Check your config/voyager.php configuration file for the 'media' entry under the 'components' array. Also verify the package is present in vendor/thecontrolgroup/voyager/
    Affected if The media component is listed as enabled in the configuration and the Voyager package files exist in the vendor directory
  3. Confirm media upload endpoint is publicly accessible
    Examine your routes/web.php and routes/api.php files for Voyager media routes. Check if the POST endpoint for media uploads (typically /admin/media/upload or /voyager/media) has no auth middleware applied
    Affected if The media upload route exists without any authentication middleware (middleware: [] or no middleware declaration)
  4. Inspect storage directory permissions
    Check the permissions on the storage/app/public directory and its subdirectories, specifically the folders where uploaded media is stored. Use ls -la storage/app/public/
    Affected if The storage directory is world-writable (permissions 777) or owned by a web-server-unprivileged user without proper restrictions
  5. Review middleware configuration for media routes
    Check the Voyager service provider or route configuration files in vendor/thecontrolgroup/voyager/src/ to determine what middleware protects the media upload routes. Compare this against your application's auth configuration
    Affected if No authentication or authorization middleware is required for the media upload functionality

You are affected if Voyager version is below 1.4.0 AND the media component is enabled with unauthenticated upload access exposed to the network.

Generated from the published advisory. Verify against your own configuration.

Check your environment

Paste your version and any relevant configuration and it will be compared against the affected criteria above. Do not include secrets or credentials.

AI-assisted, checked against the advisory. Informational, not a guarantee.

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 · scoped
Upgrade available Upgrade to 1.4.0 or later
Fixed in 1.4.0
Interim mitigation

Upgrade Voyager to the latest patched version immediately. If upgrading is not immediately feasible, disable or restrict access to the media component and implement strict authentication on any file upload endpoints.

Recommended fix High confidence

Voyager 1.4.0

  1. 1. Backup your current Voyager installation and database before proceeding with any changes.
  2. 2. Upgrade Voyager to version 1.4.0 or later. If using Composer, run: composer require tcg/voyager:^1.4
  3. 3. Clear any cached files and verify the media component is functioning correctly after upgrade.
  4. 4. Review user permissions for the media component to ensure proper access controls are in place.
Caveat Check Voyager release notes for any breaking changes between your current version and 1.4.0 before upgrading in production environments

Generated from the published advisory — verify against the referenced sources before acting.

Fix this in Voyager Scoped from the published advisory
  • Consultation3.0 h
  • Implementation4.0 h
  • Testing3.0 h
  • Review / QA2.0 h
12.0 hours of engineering $2,130
Get the upgrade done

An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $3,408.

Scan for this in your stack

Free · runs locally
dbcve dependency scanner

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References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.

Primary sources

Practitioner notes

Contributed

Peer-ranked notes from engineers who’ve handled CVE-2020-36070 in production — separate from our analysis above.

No notes yet

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What this is

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.

What belongs here
  • 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