CVE-2026-103485
MediumCVSS 5.4Exploitation Probability (EPSS)
Low risk28th percentile - higher than 28% of all known CVEs
Summary
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. Unauthenticated attackers can inject arbitrary web scripts that execute when a user accesses an injected page. Exploitation requires a site administrator to have previously configured a public map using the [leaflet-map]+[leaflet-geojson]+[choropleth] shortcode combination whose GeoJSON src URL is controlled by the attacker.
Risk Assessment
Can lead to execution of malicious JavaScript in users' browsers, risking session theft and account takeover. However, it requires an administrator to configure a map pointing to an external, untrusted data source.
Recommendation
Update the Extensions for Leaflet Map plugin to a version later than 5.4. Ensure all configured maps use only trusted GeoJSON sources.
Other vulnerabilities in Extensions for Leaflet Map
See all- CVE-2026-114703Medium
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in the WordPress Extensions for Leaflet Map plugin allows Stored XSS. This issue affects Extensions for Leaflet Map through version 6.0.
- CVE-2026-57380High
The Extensions for Leaflet Map WordPress plugin is vulnerable to DOM-based XSS. The flaw affects versions up to and including 5.1, allowing an attacker to inject malicious scripts.
- CVE-2025-66093Medium
The Extensions for Leaflet Map plugin for WordPress (versions up to 4.8) is vulnerable to DOM-Based XSS due to improper neutralization of input during web page generation. An attacker can inject malicious code that executes in a user's browser.
- CVE-2025-12369Medium
The Extensions for Leaflet Map plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the `geojsonmarker` shortcode in all versions up to, and including, 4.7. This is due to insufficient input sanitization and output escaping on user-supplied attributes. This allows authenticated attackers with Contributor-level access and above to inject arbitrary web scripts that execute when a user accesses an injected page.
Original NVD description (English source)
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.
Vulnerability data from NVD (NIST) · CISA KEV · EPSS