Unrestricted File UploadWeakness · CWE-434

CVE-2026-32482

CRITICAL · 9.9 CVSS v3.1 Published 2026-03-25
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
Unrestricted Upload of File with Dangerous Type vulnerability in deothemes Ona ona allows Upload a Web Shell to a Web Server.This issue affects Ona: from n/a through < 1.24.

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 deothemes Ona theme contains an unrestricted file upload vulnerability that allows attackers to upload web shells to the web server, enabling remote code execution. This is a critical file upload validation flaw that fails to properly restrict dangerous file types.

MitigationImplement strict allow-list based file type validation, store uploads outside the webroot, rename uploaded files to prevent execution, 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
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. Confirm Ona theme installation
    Check your WordPress theme directory (wp-content/themes/) for the 'ona' or 'ona-theme' folder, or inspect page source for 'ona' or 'deothemes' in theme-related meta tags or class names
    Affected if The Ona theme by deothemes is installed on the WordPress site
  2. Locate file upload functionality
    Search for forms with file input fields or upload endpoints in the theme's template files (look for enctype='multipart/form-data', input type='file', or PHP move_uploaded_file/ wp_handle_upload calls)
    Affected if The theme contains file upload forms or handlers that accept user-submitted files
  3. Inspect file type validation
    Review upload handler code for proper validation - check for allow-lists of permitted extensions, MIME type validation, or file header inspection. Look for functions that restrict uploads to safe types only
    Affected if The upload code lacks proper file type validation or uses only client-side checks or weak allow-lists that permit executable extensions like .php, .phtml, or .php5
  4. Check upload directory placement
    Inspect where uploaded files are stored - look for upload path configuration in theme settings or PHP code, and verify if uploads directory is within the webroot
    Affected if Uploaded files are stored in a publicly accessible web directory where script execution is not disabled
  5. Test upload functionality if authorized
    If you have authorized access, attempt to upload a harmless test file with a .php extension to verify if the upload is accepted without validation
    Affected if Files with dangerous extensions (.php, .phtml, .php5, .exe) are accepted and stored in a web-accessible location

You are affected if the deothemes Ona theme is installed and its upload mechanism lacks proper server-side file type validation, allowing executable file types to be uploaded to a web-accessible directory.

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
Mitigation available No clean upgrade yet — mitigate in the meantime
Mitigation

Implement strict allow-list based file type validation, store uploads outside the webroot, rename uploaded files to prevent execution, and disable script execution in upload directories.

Recommended fix Moderate confidence

Version 1.24 or later

  1. Backup your current Ona theme installation before proceeding with the upgrade
  2. Download Ona theme version 1.24 or later from the official deothemes source
  3. Replace the existing Ona theme files with the updated version 1.24 files
  4. Verify the upgrade was successful by checking the theme version in your WordPress admin dashboard
  5. Review your uploads directory for any suspicious files that may have been uploaded during the time the vulnerability was present
  6. Check your server for indicators of compromise such as unexpected PHP files, suspicious processes, or unauthorized admin accounts

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

Have this fixed Scoped from the published advisory
  • Consultation3.0 h
  • Implementation6.0 h
  • Testing4.0 h
  • Review / QA2.0 h
15.0 hours of engineering $2,640
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Scan for this in your stack

Free · runs locally
dbcve dependency scanner

Check whether your project pulls in CVE-2026-32482 — 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-2026-32482 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