{"resultsPerPage":1,"startIndex":0,"totalResults":1,"format":"NVD_CVE","version":"2.0","timestamp":"2026-04-18T04:05:49.360","vulnerabilities":[{"cve":{"id":"CVE-2026-1916","sourceIdentifier":"security@wordfence.com","published":"2026-02-25T09:16:14.943","lastModified":"2026-04-15T00:35:42.020","vulnStatus":"Deferred","cveTags":[],"descriptions":[{"lang":"en","value":"The WPGSI: Spreadsheet Integration plugin for WordPress is vulnerable to unauthorized modification and loss of data due to missing capability checks and an insecure authentication mechanism on the `wpgsi_callBackFuncAccept` and `wpgsi_callBackFuncUpdate` REST API functions in all versions up to, and including, 3.8.3. Both REST endpoints use `permission_callback => '__return_true'`, allowing unauthenticated access. The plugin's custom token-based validation relies on a Base64-encoded JSON object containing the user ID and email address, but is not cryptographically signed. This makes it possible for unauthenticated attackers to forge tokens using publicly enumerable information (admin user ID and email) to create, modify, and delete arbitrary WordPress posts and pages, granted they know the administrator's email address and an active integration ID with remote updates enabled."},{"lang":"es","value":"El plugin WPGSI: Spreadsheet Integration para WordPress es vulnerable a la modificación no autorizada y la pérdida de datos debido a la falta de comprobaciones de capacidad y un mecanismo de autenticación inseguro en las funciones de la API REST 'wpgsi_callBackFuncAccept' y 'wpgsi_callBackFuncUpdate' en todas las versiones hasta la 3.8.3, inclusive. Ambos puntos finales REST utilizan 'permission_callback => '__return_true'', lo que permite el acceso no autenticado. La validación personalizada basada en tokens del plugin se basa en un objeto JSON codificado en Base64 que contiene el ID de usuario y la dirección de correo electrónico, pero no está firmado criptográficamente. Esto hace posible que atacantes no autenticados forjen tokens utilizando información públicamente enumerable (ID de usuario administrador y correo electrónico) para crear, modificar y eliminar publicaciones y páginas arbitrarias de WordPress, siempre que conozcan la dirección de correo electrónico del administrador y un ID de integración activo con las actualizaciones remotas habilitadas."}],"metrics":{"cvssMetricV31":[{"source":"security@wordfence.com","type":"Secondary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N","baseScore":7.5,"baseSeverity":"HIGH","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"NONE","integrityImpact":"HIGH","availabilityImpact":"NONE"},"exploitabilityScore":3.9,"impactScore":3.6}]},"weaknesses":[{"source":"security@wordfence.com","type":"Secondary","description":[{"lang":"en","value":"CWE-862"}]}],"references":[{"url":"https://plugins.trac.wordpress.org/browser/wpgsi/tags/3.8.3/admin/class-wpgsi-update.php#L116","source":"security@wordfence.com"},{"url":"https://plugins.trac.wordpress.org/browser/wpgsi/tags/3.8.3/admin/class-wpgsi-update.php#L636","source":"security@wordfence.com"},{"url":"https://plugins.trac.wordpress.org/browser/wpgsi/tags/3.8.3/admin/class-wpgsi-update.php#L94","source":"security@wordfence.com"},{"url":"https://plugins.trac.wordpress.org/browser/wpgsi/trunk/admin/class-wpgsi-update.php#L116","source":"security@wordfence.com"},{"url":"https://plugins.trac.wordpress.org/browser/wpgsi/trunk/admin/class-wpgsi-update.php#L636","source":"security@wordfence.com"},{"url":"https://plugins.trac.wordpress.org/browser/wpgsi/trunk/admin/class-wpgsi-update.php#L94","source":"security@wordfence.com"},{"url":"https://plugins.trac.wordpress.org/changeset/3461326/wpgsi/trunk/admin/class-wpgsi-update.php","source":"security@wordfence.com"},{"url":"https://www.wordfence.com/threat-intel/vulnerabilities/id/7598b38b-26b1-4640-9bd7-60613a5f704d?source=cve","source":"security@wordfence.com"}]}}]}