Unrestricted File UploadWeakness · CWE-434

CVE-2024-52488

CRITICAL · 9.9 CVSS v3.1 Published 2026-06-17
Mitigation only
No fix yet — a mitigation exists. There is no fixed release. A documented workaround reduces exposure in the meantime.
See remediation →
100/100
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
Subscriber Arbitrary File Upload in Grip <= 1.0.9 versions.

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 · high confidence

Grip plugin versions 1.0.9 and below allows authenticated users with Subscriber-level permissions to upload arbitrary files to the server due to insufficient authorization checks and file type validation on the upload functionality. This can lead to remote code execution if malicious PHP files are uploaded.

MitigationUpdate Grip plugin to the latest patched version immediately. If update is not available, disable the plugin or remove Subscriber-level permissions until a patch is released.

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

CVSS:3.1/AV:N/AC:L/PR:L/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. Verify Grip plugin is installed
    Navigate to WordPress admin plugin list and confirm Grip plugin appears in the installed plugins
    Affected if Grip plugin is present in the plugins directory and is active
  2. Check installed Grip plugin version
    In WordPress admin, go to Plugins > Installed Plugins > Grip, and note the version number displayed
    Affected if Version is 1.0.9 or lower
  3. Confirm file upload feature is enabled
    Access the Grip plugin settings or upload functionality (typically at /wp-admin/admin.php?page=grip-upload or similar), and verify if an upload form is accessible
    Affected if Upload functionality is present and accessible without admin-level restrictions
  4. Verify Subscriber role permissions
    In WordPress admin, go to Users > Roles or use a role editor plugin to examine the Subscriber role capabilities, specifically checking for upload_permissions or file_upload capabilities
    Affected if Subscriber role has file upload capabilities or the upload endpoint accepts requests from Subscriber-level users
  5. Inspect upload directory configuration
    Check wp-content/uploads directory and verify write permissions, and examine if the uploads folder allows PHP file execution
    Affected if Uploads directory is writable and permits execution of uploaded files (no .htaccess restrictions blocking PHP execution)

If Grip plugin version 1.0.9 or lower is installed, the file upload feature is accessible, and Subscriber-level users can upload files, the environment is vulnerable to arbitrary file upload and potential remote code 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

Update Grip plugin to the latest patched version immediately. If update is not available, disable the plugin or remove Subscriber-level permissions until a patch is released.

Have this fixed Scoped from the published advisory
  • Consultation2.0 h
  • Implementation1.0 h
  • Testing2.0 h
  • Review / QA1.0 h
6.0 hours of engineering $1,060
Get help mitigating

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Scan for this in your stack

Free · runs locally
dbcve dependency scanner

Check whether your project pulls in CVE-2024-52488 — 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-2024-52488 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