---
id: "CVE-2026-111406"
kind: "vulnerability"
aliases: ["CVE-2026-111406"]
title: "Unrestricted Upload of File with Dangerous Type vulnerability in PT Norther Lights Production MapSVG\u2026"
severity: "critical"
cvss: 9.9
epss: null
exploited: false
status: "open"
category: "package"
products: []
ecosystems: []
tags: ["mapsvg", "package", "self-hosted", "wordpress"]
not_affected_if: ["plugin-not-installed", "versions-after-8.16.1"]
published_at: "2026-10-19T10:16:46+00:00"
first_seen_at: "2026-10-23T21:57:17+00:00"
updated_at: "2026-10-23T22:28:56+00:00"
sources: [{"source": "nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-111406", "first_seen_at": "2026-10-23T21:57:17+00:00"}]
---

# Unrestricted Upload of File with Dangerous Type vulnerability in PT Norther Lights Production MapSVG…

MapSVG (mapsvg-lite-interactive-vector-maps), a WordPress-style interactive map plugin by PT Norther Lights Production, lets users upload files of dangerous types without restriction. An attacker can upload a web shell to the web server and run commands on it.

_Summary, check and fix written by a model from the sources; labelled as such._

## How to check

Check the installed MapSVG version (versions up to and including 8.16.1 are affected) in the plugin's header or package metadata.

## Fix

Update MapSVG to a version newer than 8.16.1; the sources do not name the fixed version.
If no fixed version is available, disable or remove the plugin and check the upload directories for unexpected script files.

## Timeline

- 2026-10-23T21:57:17+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2026-111406

## From the sources

Unrestricted Upload of File with Dangerous Type vulnerability in PT Norther Lights Production MapSVG mapsvg-lite-interactive-vector-maps allows Upload a Web Shell to a Web Server.This issue affects MapSVG: from n/a through 8.16.1.

---

_Free to read at a human pace. An API with keys and an MCP server are in preparation; early access: hello@infrastack.ai_