CVE-2026-4373

{"id": "CVE-2026-4373", "cveTags": [], "metrics": {"cvssMetricV31": [{"type": "Secondary", "source": "security@wordfence.com", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 7.5, "attackVector": "NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "NONE", "privilegesRequired": "NONE", "confidentialityImpact": "HIGH"}, "impactScore": 3.6, "exploitabilityScore": 3.9}]}, "published": "2026-03-21T07:16:10.380", "references": [{"url": "https://plugins.trac.wordpress.org/browser/jetformbuilder/tags/3.5.6.2/includes/classes/resources/uploaded-file.php#L99", "source": "security@wordfence.com"}, {"url": "https://plugins.trac.wordpress.org/browser/jetformbuilder/tags/3.5.6.2/modules/actions-v2/send-email/send-email-action.php#L214", "source": "security@wordfence.com"}, {"url": "https://plugins.trac.wordpress.org/browser/jetformbuilder/tags/3.5.6.2/modules/block-parsers/file-uploader.php#L313", "source": "security@wordfence.com"}, {"url": "https://plugins.trac.wordpress.org/changeset/3486996/jetformbuilder", "source": "security@wordfence.com"}, {"url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/1801fd3e-d56f-4540-9700-9e9de8b465e1?source=cve", "source": "security@wordfence.com"}], "vulnStatus": "Deferred", "weaknesses": [{"type": "Secondary", "source": "security@wordfence.com", "description": [{"lang": "en", "value": "CWE-36"}]}], "descriptions": [{"lang": "en", "value": "The JetFormBuilder plugin for WordPress is vulnerable to arbitrary file read via path traversal in all versions up to, and including, 3.5.6.2. This is due to the 'Uploaded_File::set_from_array' method accepting user-supplied file paths from the Media Field preset JSON payload without validating that the path belongs to the WordPress uploads directory. Combined with an insufficient same-file check in 'File_Tools::is_same_file' that only compares basenames, this makes it possible for unauthenticated attackers to exfiltrate arbitrary local files as email attachments by submitting a crafted form request when the form is configured with a Media Field and a Send Email action with file attachment."}, {"lang": "es", "value": "El plugin JetFormBuilder para WordPress es vulnerable a la lectura arbitraria de archivos a trav\u00e9s de salto de ruta en todas las versiones hasta la 3.5.6.2, inclusive. Esto se debe a que el m\u00e9todo 'Uploaded_File::set_from_array' acepta rutas de archivo proporcionadas por el usuario desde la carga \u00fatil JSON preestablecida del campo de medios sin validar que la ruta pertenezca al directorio de subidas de WordPress. Combinado con una verificaci\u00f3n insuficiente de mismo archivo en 'File_Tools::is_same_file' que solo compara nombres base, esto hace posible que atacantes no autenticados exfiltren archivos locales arbitrarios como adjuntos de correo electr\u00f3nico al enviar una solicitud de formulario manipulada cuando el formulario est\u00e1 configurado con un campo de medios y una acci\u00f3n de env\u00edo de correo electr\u00f3nico con adjunto de archivo."}], "lastModified": "2026-04-24T16:27:44.277", "sourceIdentifier": "security@wordfence.com"}