# CVE-2026-111405: PT Norther Lights MapSVG stored cross-site scripting

Source: https://junglewise.ai/threats/cve-2026-111405-improper-neutralization-of-input-during-web-page-generation  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-10-16. Updated: 2026-10-16  
License: CC BY 4.0 with a link back

CVE-2026-111405 · Severity: medium · CVSS 6.5 · Published 2026-10-16

MapSVG is a WordPress plugin that creates interactive vector maps for websites. A stored cross-site scripting (XSS) vulnerability in versions up to 8.16.1 allows contributors to inject malicious scripts that execute in the browsers of site administrators and visitors, potentially stealing data or hijacking accounts. The vulnerability has been patched in version 8.16.2.

Technologies: [PT Norther Lights Production MapSVG](https://junglewise.ai/threats/technologies/pt-norther-lights-production-mapsvg). Vendors: [PT Norther Lights Production](https://junglewise.ai/threats/vendors/pt-norther-lights-production).

## Quick answers

**Is CVE-2026-111405 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-111405 being exploited in the wild.

**How severe is CVE-2026-111405?** Medium severity, with a CVSS score of 6.5, published 16 October 2026.

**Which products and versions are affected?** PT Norther Lights Production MapSVG through 8.16.1.

**Is there a fix for CVE-2026-111405?** Yes: fixed in 8.16.2. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

**How is CVE-2026-111405 attacked?** It is attacked over the network, in a software library.

**Am I affected by CVE-2026-111405?** Check whether you run PT Norther Lights Production MapSVG at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## How to fix

- Fixed in 8.16.2

## Technical details

The vulnerability is a stored XSS in the MapSVG WordPress plugin affecting versions through 8.16.1. It allows users with contributor or developer privileges to inject malicious scripts that persist in the database and execute when administrators or visitors access affected pages. Exploitation requires user interaction (a privileged user visiting a crafted page or clicking a malicious link) but results in session hijacking or data theft.

## Affected products

- PT Norther Lights Production MapSVG through 8.16.1

## Timeline

- 2026-10-05: disclosed
- 2026-10-16: advisory

## References

- [https://wordpress.org/plugins](https://wordpress.org/plugins)
- [https://patchstack.com/database/wordpress/plugin/mapsvg-lite-interactive-vector-maps/vulnerability/wordpress-mapsvg-plugin-8-16-1-cross-site-scripting-xss-vulnerability?_s_id=cve](https://patchstack.com/database/wordpress/plugin/mapsvg-lite-interactive-vector-maps/vulnerability/wordpress-mapsvg-plugin-8-16-1-cross-site-scripting-xss-vulnerability?_s_id=cve)

## Related threats

- [MapSVG unrestricted file upload vulnerability](https://junglewise.ai/threats/cve-2026-111406-unrestricted-upload-of-file-with-dangerous-type-vulnerability-in)
- [MapSVG path traversal in file deletion](https://junglewise.ai/threats/cve-2026-111398-improper-limitation-of-a-pathname-to-a-restricted-directory-path)
- [MapSVG SQL injection in WordPress plugin](https://junglewise.ai/threats/cve-2026-111399-improper-neutralization-of-special-elements-used-in-an-sql)