Unrestricted File UploadWeakness · CWE-434

CVE-2026-27067

CRITICAL · 9.1 CVSS v3.1 Published 2026-03-19
Mitigation only
No fix yet — a mitigation exists. There is no fixed release. A documented workaround reduces exposure in the meantime.
See remediation →
97/100
Remediation priority · Urgent
Remotely reachable 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
Unrestricted Upload of File with Dangerous Type vulnerability in Syarif Mobile App Editor mobile-app-editor allows Upload a Web Shell to a Web Server.This issue affects Mobile App Editor: from n/a through <= 1.3.1.

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

The mobile-app-editor component has an unrestricted file upload vulnerability that permits attackers to upload arbitrary file types, including malicious web shells, directly to the web server. This can enable remote code execution and complete system compromise.

MitigationImplement strict allowlist-based file validation (extension, MIME type, and content inspection), store uploads outside the webroot, and disable script execution in upload directories.

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
High
User interaction
None
Scope
Changed
Confidentiality
High
Integrity
High
Availability
High

CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/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. Identify mobile-app-editor component presence
    Search your codebase, application directories, or installed packages for the 'mobile-app-editor' component name. Check package.json, composer.json, or similar dependency manifests if applicable.
    Affected if The mobile-app-editor component is found in your environment and has file upload functionality enabled.
  2. Determine mobile-app-editor version
    Locate the version information for the mobile-app-editor component through your package manager (npm list, pip show, etc.) or check version files within the component directory.
    Affected if The installed version falls within any vulnerable version range for this CVE.
  3. Verify file upload feature is enabled
    Examine the mobile-app-editor configuration files or source code for upload-related endpoints, functions, or settings that enable file upload capability.
    Affected if File upload functionality is enabled and accessible in the component.
  4. Inspect file type validation logic
    Review the file upload handler code in mobile-app-editor to determine what file type validation exists. Look for allowlist/blocklist logic for file extensions and MIME types.
    Affected if There is no strict allowlist-based validation, or validation can be bypassed for file extensions like .php, .js, .asp, .exe, or other executable types.
  5. Check upload directory placement
    Locate the configured or default upload directory for the mobile-app-editor. Verify whether it is inside or outside the webroot by examining configuration files or upload path settings.
    Affected if Uploads are stored within the webroot or a directory that permits script execution.

Your environment is affected if the mobile-app-editor component is present with file upload enabled, lacks strict allowlist-based file validation, and stores uploads in a web-accessible directory that allows script execution.

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.

From vendor data
Mitigation available No clean upgrade yet — mitigate in the meantime
Mitigation

Implement strict allowlist-based file validation (extension, MIME type, and content inspection), store uploads outside the webroot, and disable script execution in upload directories.

Have this fixed Scoped from the published advisory
  • Consultation3.0 h
  • Implementation6.0 h
  • Testing5.0 h
  • Review / QA3.0 h
17.0 hours of engineering $2,970
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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-2026-27067 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
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