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CVE-2026-103485— Extensions for Leaflet Map <= 5.4 - Unauthenticated Stored DOM-Based Cross-Site Scripting via External GeoJSON Property

Quick assessment

Affected
hupe13 Extensions for Leaflet Map
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

WordPress 的"Extensions for Leaflet Map"插件在所有 5.4 及更早版本中，存在存储型 DOM 跨站脚本（Stored DOM-Based XSS）漏洞。该漏洞源于对 参数缺乏充分的输入清洗和输出转义。未认证的攻击者可借此在页面中注入任意 Web 脚本，这些脚本将在任何用户访问被注入的页面时执行。 利用该漏洞的前提是：站点管理员此前已通过 短代码组合配置了公开地图，且该地图所使用的 GeoJSON 源 URL 由攻击者控制（例如，通过外部数据主机被攻破、子域名接管，或站点故意指向

CVSS 5.4 · Medium EPSS 0.34% · P28

Possible ATT&CK Techniques 1 AI

T1193

Affected Version Matrix 1

VendorProduct Version RangeStatus
hupe13 Extensions for Leaflet Map ≤ 5.4 affected
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I. Basic Information for CVE-2026-103485

Vulnerability Information
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Vulnerability Title
Extensions for Leaflet Map <= 5.4 - Unauthenticated Stored DOM-Based Cross-Site Scripting via External GeoJSON Property
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:L/I:L/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
在Web页面生成时对输入的转义处理不恰当(跨站脚本)
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
hupe13 Extensions for Leaflet Map 0 ~ 5.4 -

II. Public POCs for CVE-2026-103485

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III. Intelligence Information for CVE-2026-103485

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Vendor Pages for CVE-2026-103485 (3)

Other References for CVE-2026-103485 (2)

Other References for CVE-2026-103485 (1)

IV. Related Vulnerabilities

Same product: Extensions for Leaflet Map
Same vendor: hupe13
Same weakness: CWE-79