Unrestricted File UploadWeakness · CWE-434

CVE-2025-68909

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 Blogistic blogistic allows Using Malicious Files.This issue affects Blogistic: from n/a through <= 1.0.5.

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 Blogistic theme from blazethemes contains an unrestricted file upload vulnerability allowing attackers to upload malicious files (potentially PHP shells) due to missing file type validation in the upload functionality. This could enable remote code execution on the affected server.

MitigationImplement strict allowlist-based file type validation including MIME type verification, extension checking, and file content analysis; store uploads outside webroot or disable script execution via server configuration.

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 Blogistic theme installation
    Identify if the Blogistic theme from blazethemes is installed in your CMS/website. Check theme directories or admin panel for 'blazethemes' or 'Blogistic' theme files.
    Affected if The Blogistic theme is present in your environment
  2. Locate file upload functionality
    Search theme files for upload handlers - look for PHP files containing 'upload', 'file', 'POST' handling, particularly in directories like /includes/, /functions/, /controllers/, or /ajax/. Check form handlers that process file uploads.
    Affected if The theme contains a file upload form or endpoint that accepts user-submitted files
  3. Inspect file type validation
    Examine the upload handler code for validation checks. Look for: MIME type verification (Content-Type header checks), extension allowlists/blocklists, file content/magic byte validation. Check if $_FILES or similar upload superglobals are validated before moving files.
    Affected if The upload handler lacks or has weak file type validation (no extension allowlist, no MIME type check, no content validation)
  4. Verify upload directory access
    Check the upload destination folder - determine if it is within the web document root and if the server permits script execution (PHP, etc.) in that directory. Look for .htaccess restrictions or server config.
    Affected if Uploads are stored in a web-accessible directory without script execution disabled
  5. Test upload behavior (if authorized)
    If you have authorization, attempt to upload a non-image file (e.g., a text file with .php extension or a file with executable MIME type) through the theme's upload functionality to confirm if restrictions are enforced.
    Affected if Files with potentially malicious extensions or types are accepted and can be accessed via web

You are affected if the Blogistic theme is installed and its upload functionality lacks proper file type validation, allowing execution of uploaded scripts.

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 including MIME type verification, extension checking, and file content analysis; store uploads outside webroot or disable script execution via server configuration.

Have this fixed Scoped from the published advisory
  • Consultation3.0 h
  • Implementation6.0 h
  • Testing3.0 h
  • Review / QA2.0 h
14.0 hours of engineering $2,490
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Scan for this in your stack

Free · runs locally
dbcve dependency scanner

Check whether your project pulls in CVE-2025-68909 — 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-2025-68909 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
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