CVE-2026-3427

{"id": "CVE-2026-3427", "cveTags": [], "metrics": {"cvssMetricV31": [{"type": "Secondary", "source": "security@wordfence.com", "cvssData": {"scope": "CHANGED", "version": "3.1", "baseScore": 6.4, "attackVector": "NETWORK", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N", "integrityImpact": "LOW", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "NONE", "privilegesRequired": "LOW", "confidentialityImpact": "LOW"}, "impactScore": 2.7, "exploitabilityScore": 3.1}]}, "published": "2026-03-22T04:16:24.197", "references": [{"url": "https://github.com/Yoast/wordpress-seo/pull/23035", "source": "security@wordfence.com"}, {"url": "https://plugins.trac.wordpress.org/browser/wordpress-seo/tags/27.0/inc/class-wpseo-utils.php#L915", "source": "security@wordfence.com"}, {"url": "https://plugins.trac.wordpress.org/browser/wordpress-seo/tags/27.0/src/generators/schema/howto.php#L125", "source": "security@wordfence.com"}, {"url": "https://plugins.trac.wordpress.org/changeset/3475308/wordpress-seo", "source": "security@wordfence.com"}, {"url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/fee1fef5-5716-49e0-a04e-d0dae527fcfc?source=cve", "source": "security@wordfence.com"}], "vulnStatus": "Deferred", "weaknesses": [{"type": "Secondary", "source": "security@wordfence.com", "description": [{"lang": "en", "value": "CWE-79"}]}], "descriptions": [{"lang": "en", "value": "The Yoast SEO \u2013 Advanced SEO with real-time guidance and built-in AI plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the the `jsonText` block attribute in all versions up to, and including, 27.1.1 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."}, {"lang": "es", "value": "El plugin Yoast SEO \u2013 Advanced SEO con gu\u00eda en tiempo real e IA integrada para WordPress es vulnerable a cross-site scripting almacenado a trav\u00e9s del atributo de bloque 'jsonText' en todas las versiones hasta la 27.1.1, inclusive, debido a una sanitizaci\u00f3n de entrada y un escape de salida insuficientes. Esto permite a atacantes autenticados, con acceso de nivel Colaborador o superior, inyectar scripts web arbitrarios en p\u00e1ginas que se ejecutar\u00e1n cada vez que un usuario acceda a una p\u00e1gina inyectada."}], "lastModified": "2026-04-24T16:32:53.997", "sourceIdentifier": "security@wordfence.com"}