What’s Vulnerable › Vulnerabilities

CVE-2026-4389: DSGVO snippet for Leaflet Map and its Extensions <= 3.1 - Authenticated (Contributor+) Stored Cross-Site Scripting via 'unset' Attribute

• Severity: medium (CVSS 6.4 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-03-26 · updated 2026-06-17
• Weakness: CWE-79

Description

The DSGVO snippet for Leaflet Map and its Extensions plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the `leafext-cookie-time` and `leafext-delete-cookie` shortcodes in all versions up to, and including, 3.1. This is due to insufficient input sanitization and output escaping on user supplied attributes (`unset`, `before`, `after`). 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.

Affected products

• hupe13 DSGVO snippet for Leaflet Map and its Extensions: through 3.1

References

• https://plugins.trac.wordpress.org/browser/dsgvo-leaflet-map/tags/3.1/php/time-delete.php#L35
• https://plugins.trac.wordpress.org/browser/dsgvo-leaflet-map/tags/3.4
• https://plugins.trac.wordpress.org/browser/dsgvo-leaflet-map/trunk/php/time-delete.php#L35
• https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&new=3489426%40dsgvo-leaflet-map%2Ftrunk&old=3488424%40dsgvo-leaflet-map%2Ftrunk&sfp_email=&sfph_mail=
• https://www.wordfence.com/threat-intel/vulnerabilities/id/dfeaff92-165a-4006-8e52-a99ae6b68dd9?source=cve

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