CVE-2026-103485 Extensions for Leaflet Map <= 5.4 - Unauthenticated Stored DOM-Based Cross-Site Scripting via External GeoJSON Property
- Exploited in the wild
- Not known
- Fix
- None listed
What is CVE-2026-103485?
CVE-2026-103485 is a medium-severity vulnerability in hupe13 Extensions for Leaflet Map, published on 29 Oct 2026.
Official description
The Extensions for Leaflet Map plugin for WordPress is vulnerable to Stored DOM-Based Cross-Site Scripting via the 'feature.properties[<template-token>]' parameter in all versions up to, and including, 5.4 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. Exploitation requires that a site administrator has previously configured a public map using the [leaflet-map]+[leaflet-geojson]+[choropleth] shortcode combination whose GeoJSON src URL is one the attacker controls — for example, through compromise of an external data host, a subdomain takeover, or a site intentionally pointing at an attacker-hosted feed.
Weakness: CWE-79
Which versions are affected by CVE-2026-103485?
How do I fix CVE-2026-103485?
No fix has been published for CVE-2026-103485 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-103485 being exploited?
There is no known exploitation of CVE-2026-103485 in the wild and no public exploit code.
Sources
Also known as GHSA-7vcm-wxx6-q65r.