---
title: "CVE-2026-111406: PT Norther Lights Production MapSVG - Unrestricted File Upload"
description: "PT Norther Lights Production MapSVG <= 8.16.1 contains an unrestricted file upload vulnerability caused by lack of file type restrictions, letting attackers upload web shells to the server, exploit requires no special privileges."
url: https://panop.io/threat-heartbeat/CVE-2026-111406/
---

# CVE-2026-111406 PT Norther Lights Production MapSVG - Unrestricted File Upload

PT Norther Lights Production MapSVG <= 8.16.1 contains an unrestricted file upload vulnerability caused by lack of file type restrictions, letting attackers upload web shells to the server, exploit requires no special privileges.

CVSS base score 9.9 /10

Critical

CISA KEV

Not listed

Public exploit

None known

Authentication

Required

[View the NVD record ↗](https://nvd.nist.gov/vuln/detail/CVE-2026-111406)

## Details

Type

Unrestricted File Upload

Impact

Remote Code Execution

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

Published

19 October 2026

Updated

20 October 2026

Weakness

[CWE-434](https://cwe.mitre.org/data/definitions/434.html)

## Vendor fix

Update to the latest version beyond 8.16.1.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

## References

- [https://nvd.nist.gov/vuln/detail/CVE-2026-111406](https://nvd.nist.gov/vuln/detail/CVE-2026-111406)
- [https://patchstack.com/database/wordpress/plugin/mapsvg-lite-interactive-vector-maps/vulnerability/wordpress-mapsvg-plugin-8-16-1-arbitrary-file-upload-vulnerability?\_s\_id=cve](https://patchstack.com/database/wordpress/plugin/mapsvg-lite-interactive-vector-maps/vulnerability/wordpress-mapsvg-plugin-8-16-1-arbitrary-file-upload-vulnerability?_s_id=cve)

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## What this record can't tell you

- Whether you run the affected software, and where
- Whether an attacker can actually reach and exploit it
- The misconfigurations that never get a CVE number
- What it would cost the business, ranked into what to fix first

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