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6.4

WordPress OpenStreetMap Plugin Allows Hacker Access to Inject Malicious Code

CVE-2026-4429 · published 7 months ago
Summary

The OpenStreetMap plugin for WordPress contains a security flaw that lets an attacker with contributor-level access or higher inject malicious code on a website. This could allow them to harm visitors or steal sensitive information. To fix this, update the plugin to version 6.1.16 or later.

Original advisory text
The OSM – OpenStreetMap plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'marker_name' and 'file_color_list' shortcode attribute of the [osm_map_v3] shortcode in all versio...
The OSM – OpenStreetMap plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'marker_name' and 'file_color_list' shortcode attribute of the [osm_map_v3] shortcode in all versions up to and including 6.1.15. This is due to insufficient input sanitization and output escaping. 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.
References
Fix within
Internet-facing 60 days
Internal At next upgrade
  • Not known to be exploited
  • Needs hands-on effort to exploit
  • Gives an attacker partial control
Severity
6.4 Medium
Exploitation
<1% chance of attack within 30 days
Type
CWE-79Cross-site Scripting (XSS)
Timeline
Published9 Apr 2026
Updated4 Nov 2026
First seen9 Apr 2026
Sources
CVE-2026-4429 · NVD
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