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Unrestricted File UploadWeakness · CWE-434

CVE-2025-62050

CRITICAL · 9.9 CVSS v3.1 Published 2026-01-22
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 blazethemes Blogmatic blogmatic.This issue affects Blogmatic: from n/a through <= 1.0.3.

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 Blogmatic theme allows attackers to upload dangerous file types (typically executable scripts like PHP) without proper validation, potentially leading to remote code execution on the affected WordPress installation.

MitigationImplement strict allowlist-based file type validation (checking both extension AND content/MIME type), store uploads outside web root or disable script execution in upload directories, and apply proper access controls on the upload functionality.

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. Identify Blogmatic theme installation
    Navigate to wp-content/themes/ and check for a 'blogmatic' folder. If found, open the style.css file and read the 'Version:' header to determine the installed version.
    Affected if Blogmatic theme folder exists in the WordPress themes directory and is active or installed.
  2. Check for file upload functionality
    Search the theme files (particularly functions.php, any PHP files in /inc/ or /includes/ folders) for file upload handlers: 'wp_handle_upload', 'move_uploaded_file', 'multipart/form-data', or 'file' input fields in template files.
    Affected if Theme contains code that handles file uploads, especially without apparent validation routines.
  3. Inspect file type validation logic
    In the upload handling code, look for validation functions that check file extensions ($_FILES array) and MIME types. Search for: 'wp_check_filetype', 'get_post_mime_type', or allowlist arrays containing extensions like 'php', 'php5', 'phtml'.
    Affected if No extension allowlist exists, or only basic extension checking is performed without MIME type validation.
  4. Verify uploads directory configuration
    Check wp-config.php or .htaccess for upload directory restrictions. Also examine if uploads folder (wp-content/uploads) allows script execution by checking for .htaccess rules blocking PHP execution.
    Affected if Uploads directory permits PHP execution and is web-accessible, allowing uploaded scripts to run.

A user is affected if the Blogmatic theme is installed and its upload functionality lacks proper extension and MIME type validation with script execution disabled in the uploads 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 allowlist-based file type validation (checking both extension AND content/MIME type), store uploads outside web root or disable script execution in upload directories, and apply proper access controls on the upload functionality.

Recommended fix Moderate confidence

Latest version of Blogmatic plugin (version > 1.0.3)

  1. 1. Log in to the WordPress admin dashboard
  2. 2. Navigate to Plugins > Installed Plugins
  3. 3. Locate the Blogmatic plugin and verify the current installed version
  4. 4. Check for available updates for the Blogmatic plugin
  5. 5. Update the Blogmatic plugin to the latest available version that addresses CVE-2025-62050
  6. 6. After updating, verify the new version is installed correctly
  7. 7. Test file upload functionality to ensure the vulnerability has been remediated

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

Have this fixed Scoped from the published advisory
  • Consultation2.0 h
  • Implementation4.0 h
  • Testing2.0 h
  • Review / QA1.0 h
9.0 hours of engineering $1,600
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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-2025-62050 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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