Extensions for Leaflet Map <= 4.7 - Authenticated (Contributor+) Stored Cross-Site Scripting
Vulnerability Description
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 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.
Impact Analysis
Refer to official advisory for detailed impact metrics.
Remediation
Ensure systems are updated to the latest vendor-supplied patch levels.
Am I Vulnerable?
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Credits & Attribution
The following person or organization is credited with identifying this vulnerability, as recorded in the NVD database:
- Djaidja Moundjid
References
- https://www.wordfence.com/threat-intel/vulnerabilities/id/6be74779-4db7-4d44-a706-285375f4fec9?source=cve
- https://wordpress.org/plugins/extensions-leaflet-map
- https://plugins.trac.wordpress.org/browser/extensions-leaflet-map/tags/4.7/php/geojsonmarker.php#L90
- https://plugins.trac.wordpress.org/changeset/3387532/
Affected Vendor
hupe13
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