CVE-2026-4389: HUPE13 Dsgvo Snippet For Leaflet Map And Its Extensions

Medium severity, CVSS 6.4. EPSS: 0.3% chance of exploitation in the next 30 days.

The DSGVO snippet for Leaflet Map and its Extensions plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the `leafext-cookie-time` and `leafext-delete-cookie` shortcodes in all versions up to, and including, 3.1. This is due to insufficient input sanitization and output escaping on user supplied attributes (`unset`, `before`, `after`). This makes it possible for authenticated attackers, with contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.

Affected products

• HUPE13 Dsgvo Snippet For Leaflet Map And Its Extensions: up to and including 3.1

Published 2026-03-26. Last modified 2026-06-17.