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CVE-2026-16601— CM Map Locations <= 2.1.8 - Authenticated (Subscriber+) Arbitrary File Upload via cmloc_route_image_upload AJAX Action

Quick assessment

Affected
creativemindssolutions CM Map Locations – Visualize and share your locations in a few clicks
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

WordPress 插件 “CM Map Locations – Visualize and share your locations in a few clicks” 在所有 2.1.8 及以下版本中存在有限任意文件上传漏洞。该漏洞源于 函数。由于上传处理程序对文件类型验证不足，在调用 之前，仅进行了不完整的扩展名过滤，未进行 MIME 类型检查，也未验证上传能力，从而导致攻击者提交的恶意文件可能被上传。这使得具有订阅者（Subscriber）级别及以上权限的已认证攻击者能够上传可执行文件，进而实现远程代码执行。

CVSS 8.8 · High EPSS 0.63% · P47

Affected Version Matrix 1

VendorProduct Version RangeStatus
creativemindssolutions CM Map Locations – Visualize and share your locations in a few clicks ≤ 2.1.8 affected
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I. Basic Information for CVE-2026-16601

Vulnerability Information
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Vulnerability Title
CM Map Locations <= 2.1.8 - Authenticated (Subscriber+) Arbitrary File Upload via cmloc_route_image_upload AJAX Action
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
危险类型文件的不加限制上传
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
creativemindssolutions CM Map Locations – Visualize and share your locations in a few clicks 0 ~ 2.1.8 -

II. Public POCs for CVE-2026-16601

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III. Intelligence Information for CVE-2026-16601

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Patches & Fixes for CVE-2026-16601 (5)

Vendor Advisories for CVE-2026-16601 (1)

Vendor Pages for CVE-2026-16601 (1)

IV. Related Vulnerabilities

Same vendor: creativemindssolutions
Same weakness: CWE-434

V. Comments for CVE-2026-16601

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