Unrestricted File UploadWeakness · CWE-434

CVE-2025-67910

CRITICAL · 9.1 CVSS v3.1 Published 2026-01-08
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 contentstudio Contentstudio contentstudio allows Upload a Web Shell to a Web Server.This issue affects Contentstudio: from n/a through <= 1.3.7.

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

Unrestricted file upload vulnerability in Contentstudio allows authenticated users to upload dangerous file types, specifically web shells, which can be executed to achieve remote code execution on the server. The lack of proper validation on uploaded files permits arbitrary executable scripts to be stored in web-accessible directories.

MitigationImplement strict allowlist-based file type validation, rename uploaded files, store uploads outside web root, disable script execution in upload directories, and apply proper authentication/authorization controls on upload endpoints.

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. Confirm Contentstudio is installed
    Identify whether Contentstudio is present in your environment by locating its application files, services, or web application directories
    Affected if Contentstudio is deployed and accessible
  2. Determine the installed version
    Check the application version through its admin interface, configuration files, or package metadata
    Affected if The version is unpatched or you cannot confirm a fix has been applied
  3. Verify file upload endpoint exists
    Locate and confirm the file upload functionality is accessible to authenticated users within the application
    Affected if Authenticated users can access file upload features
  4. Inspect upload storage location
    Review application and web server configuration to identify where uploaded files are stored and whether the storage path is web-accessible
    Affected if Uploaded files are stored in directories served by the web server
  5. Check for script execution controls
    Examine web server configuration for rules that prevent script execution (e.g., executable file types) in upload directories
    Affected if No restrictions blocking script execution in upload directories are configured

Your environment is affected if Contentstudio is running with file upload functionality enabled and uploaded files are stored in web-accessible directories without script execution restrictions.

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 type validation, rename uploaded files, store uploads outside web root, disable script execution in upload directories, and apply proper authentication/authorization controls on upload endpoints.

Have this fixed Scoped from the published advisory
  • Consultation4.0 h
  • Implementation12.0 h
  • Testing6.0 h
  • Review / QA3.0 h
25.0 hours of engineering $4,400
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Scan for this in your stack

Free · runs locally
dbcve dependency scanner

Check whether your project pulls in CVE-2025-67910 — 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 sources

Practitioner notes

Contributed

Peer-ranked notes from engineers who’ve handled CVE-2025-67910 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