CVE-2026-42734: Dylan Kuhn Geo Mashup

High severity, CVSS 7.1. EPSS: 0.3% chance of exploitation in the next 30 days.

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Dylan Kuhn Geo Mashup geo-mashup allows Reflected XSS.This issue affects Geo Mashup: from n/a through <= 1.13.19.

Affected products

• Dylan Kuhn Geo Mashup: up to and including 1.13.19

Published 2026-05-27. Last modified 2026-06-17.