Unrestricted File UploadWeakness · CWE-434

CVE-2025-68562

CRITICAL · 9.9 CVSS v3.1 Published 2025-12-29
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 RomanCode MapSVG allows Upload a Web Shell to a Web Server.This issue affects MapSVG: from n/a through 8.7.3.

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

MapSVG plugin versions up to 8.7.3 contain an unrestricted file upload vulnerability allowing attackers to upload malicious files (web shells) to the web server. The plugin fails to properly validate uploaded file types and content, enabling arbitrary PHP or other executable code to be uploaded and subsequently executed.

MitigationImplement strict allowlist-based file type validation including magic byte verification, store uploads outside the web root or disable script execution in upload directories, and ensure all upload functionality requires proper authentication and authorization.

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. Check MapSVG plugin version
    Navigate to WordPress admin > Plugins > Installed Plugins > MapSVG and note the version number, or inspect the plugin main file header for the 'Version' field
    Affected if Version is 8.7.3 or earlier (any version up to and including 8.7.3)
  2. Identify MapSVG upload endpoint
    Check plugin documentation or source code for upload handlers. Common paths include /wp-admin/admin-ajax.php?action=mapsvg_upload or similar. Use browser DevTools or a proxy to identify if the upload functionality is exposed
    Affected if Upload endpoint is accessible without proper authorization or accepts unauthenticated requests
  3. Locate upload directory
    Inspect plugin code for upload path configuration, typically found in $mapsvg_options['uploads_dir'] or similar. Default is often /wp-content/uploads/mapsvg/ or /wp-content/plugins/mapsvg/maps/
    Affected if Uploads directory exists within the web root and is writable
  4. Verify script execution is not blocked
    Check if .htaccess or web.config in the upload directory contains rules to prevent PHP/executable file execution (directive like 'php_flag engine off' or equivalent)
    Affected if Upload directory allows execution of uploaded PHP files (no security restrictions on script execution)
  5. Confirm file type validation is absent or weak
    Examine plugin source code for $_FILES type checking - look for functions handling file uploads and whether they validate mime type, extension, or magic bytes before saving
    Affected if Plugin does not perform proper file type validation (no allowlist, no magic byte check, accepts multiple extensions)

You are affected if MapSVG plugin version 8.7.3 or earlier is installed AND the upload functionality is accessible (even to low-privilege users) AND the uploads directory permits script execution of uploaded files.

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 magic byte verification, store uploads outside the web root or disable script execution in upload directories, and ensure all upload functionality requires proper authentication and authorization.

Have this fixed Scoped from the published advisory
  • Consultation4.0 h
  • Implementation16.0 h
  • Testing8.0 h
  • Review / QA4.0 h
32.0 hours of engineering $5,600
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Scan for this in your stack

Free · runs locally
dbcve dependency scanner

Check whether your project pulls in CVE-2025-68562 — 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-2025-68562 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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