Stored Cross-Site Scripting in OpenStreetMap Plugin for WordPress
CVE-2026-4429

6.4MEDIUM

Key Information:

Vendor

WordPress
Status
Osm – Openstreetmap
Vendor
CVE Published:
9 April 2026

What is CVE-2026-4429?

The OpenStreetMap plugin for WordPress is exposed to Stored Cross-Site Scripting vulnerabilities through the 'marker_name' and 'file_color_list' attributes of the [osm_map_v3] shortcode. This security flaw arises from inadequate input sanitization and lack of output escaping, allowing authenticated attackers with Contributor-level access to inject malicious scripts into web pages. These scripts execute whenever a user accesses affected pages, potentially compromising user data and site integrity.

Affected Version(s)

OSM – OpenStreetMap 0 <= 6.1.15

References

https://www.wordfence.com/threat-intel/vulnerabilities/id...
https://plugins.trac.wordpress.org/browser/osm/trunk/osm_...
https://plugins.trac.wordpress.org/browser/osm/tags/6.1.1...

CVSS V3.1

Score:
6.4
Severity:
MEDIUM
Confidentiality:
Low
Integrity:
Low
Availability:
Low
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Changed

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

Nguyen Ngoc Duc
.