---
id: "CVE-2026-111405"
kind: "vulnerability"
aliases: ["CVE-2026-111405"]
title: "MapSVG WordPress plugin: stored XSS through input up to 8.16.1"
severity: "medium"
cvss: 6.5
epss: null
exploited: false
status: "open"
category: "package"
products: []
ecosystems: []
tags: ["mapsvg", "package", "self-hosted", "wordpress"]
not_affected_if: ["patched-version", "plugin-not-installed"]
published_at: "2026-10-16T13:16:55+00:00"
first_seen_at: "2026-10-23T21:57:13+00:00"
updated_at: "2026-10-25T03:57:53+00:00"
sources: [{"source": "nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-111405", "first_seen_at": "2026-10-23T21:57:13+00:00"}]
---

# MapSVG WordPress plugin: stored XSS through input up to 8.16.1

The MapSVG Interactive Vector Maps plugin for WordPress (mapsvg-lite-interactive-vector-maps) fails to neutralize user input in generated pages, enabling stored cross-site scripting. An attacker who can submit that input can run scripts in the browser of anyone who views the affected page.

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

## How to check

- Check the installed plugin version in the WordPress admin under Plugins, or in `wp-content/plugins/mapsvg-lite-interactive-vector-maps/`.
- Confirm whether any version up to and including `8.16.1` is installed.

## Fix

- Update the MapSVG plugin (mapsvg-lite-interactive-vector-maps) to a version later than `8.16.1`; the fixed version is unknown from the sources.
- If no fixed version is available, deactivate the plugin until one is released.

## Timeline

- 2026-10-23T21:57:13+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2026-111405

## From the sources

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in PT Norther Lights Production MapSVG mapsvg-lite-interactive-vector-maps allows Stored XSS.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_