🔐 CVE Alert

CVE-2026-4429

MEDIUM 6.4

OSM <= 6.1.15 - Authenticated (Contributor+) Stored Cross-Site Scripting via 'marker_name' Shortcode Attribute

CVSS Score
6.4
EPSS Score
0.1%
EPSS Percentile
18th

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.

CWE CWE-79
Vendor photoweblog
Product osm – openstreetmap
Published Apr 9, 2026
Last Updated Apr 9, 2026
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CVSS v3 Breakdown

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability

Affected Versions

photoweblog / OSM – OpenStreetMap
0 ≤ 6.1.15

References

NVD ↗ CVE.org ↗ EPSS Data ↗
wordfence.com: https://www.wordfence.com/threat-intel/vulnerabilities/id/65dffde9-2a50-41fe-bc21-3d0915068887?source=cve plugins.trac.wordpress.org: https://plugins.trac.wordpress.org/browser/osm/trunk/osm_map_v3/osm-sc-osm_map_v3.php#L560 plugins.trac.wordpress.org: https://plugins.trac.wordpress.org/browser/osm/tags/6.1.15/osm_map_v3/osm-sc-osm_map_v3.php#L560 plugins.trac.wordpress.org: https://plugins.trac.wordpress.org/browser/osm/trunk/osm_map_v3/osm-sc-osm_map_v3.php#L31 plugins.trac.wordpress.org: https://plugins.trac.wordpress.org/browser/osm/tags/6.1.15/osm_map_v3/osm-sc-osm_map_v3.php#L31 plugins.trac.wordpress.org: https://plugins.trac.wordpress.org/browser/osm/trunk/osm-icon-class.php#L347 plugins.trac.wordpress.org: https://plugins.trac.wordpress.org/browser/osm/tags/6.1.15/osm-icon-class.php#L347 plugins.trac.wordpress.org: https://plugins.trac.wordpress.org/browser/osm/trunk/osm-icon-class.php#L356 plugins.trac.wordpress.org: https://plugins.trac.wordpress.org/browser/osm/tags/6.1.15/osm-icon-class.php#L356 plugins.trac.wordpress.org: https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&old=3493950%40osm&new=3493950%40osm&sfp_email=&sfph_mail=

Credits

Nguyen Ngoc Duc