CVE-2026-2837

<!-- PoC: Stored XSS in Ricerca Plugin Settings 1. Log in to WordPress as an Administrator. 2. Navigate to Settings > Ricerca (or the plugin's settings page). 3. Locate a vulnerable input field (e.g., custom text, placeholder). 4. Inject the following payload: --> "<script>alert('CVE-2026-2837');</script> <!-- 5. Save the settings. 6. Reload the settings page or view the frontend search component to observe the alert executing. -->

{"cve": {"id": "CVE-2026-2837", "sourceIdentifier": "[email protected]", "published": "2026-03-21T04:17:12.993", "lastModified": "2026-04-24T16:27:44.277", "vulnStatus": "Deferred", "cveTags": [], "descriptions": [{"lang": "en", "value": "The Ricerca – advanced search plugin for WordPress is vulnerable to Stored Cross-Site Scripting via plugin's settings in all versions up to, and including, 1.1.12 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with administrator-level permissions and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. This only affects multi-site installations and installations where unfiltered_html has been disabled."}, {"lang": "es", "value": "El plugin de búsqueda avanzada Ricerca para WordPress es vulnerable a cross-site scripting almacenado a través de la configuración del plugin en todas las versiones hasta la 1.1.12, inclusive, debido a una sanitización de entrada insuficiente y un escape de salida inadecuado. Esto permite que atacantes autenticados, con permisos de nivel de administrador y superiores, inyecten scripts web arbitrarios en páginas que se ejecutarán cada vez que un usuario acceda a una página inyectada. Esto solo afecta a instalaciones multisitio y a las instalaciones donde se ha deshabilitado 'unfiltered_html'."}], "metrics": {"cvssMetricV31": [{"source": "[email protected]", "type": "Secondary", "cvssData": {"version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:L/I:L/A:N", "baseScore": 4.4, "baseSeverity": "MEDIUM", "attackVector": "NETWORK", "attackComplexity": "HIGH", "privilegesRequired": "HIGH", "userInteraction": "NONE", "scope": "CHANGED", "confidentialityImpact": "LOW", "integrityImpact": "LOW", "availabilityImpact": "NONE"}, "exploitabilityScore": 1.3, "impactScore": 2.7}]}, "weaknesses": [{"source": "[email protected]", "type": "Secondary", "description": [{"lang": "en", "value": "CWE-79"}]}], "references": [{"url": "https://plugins.trac.wordpress.org/browser/ricerca-smart-search/tags/1.1.12/inc/admin_fields.php#L689", "source": "[email protected]"}, {"url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/ddee4794-5b57-4af1-a427-3247882952e9?source=cve", "source": "[email protected]"}]}}