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{"cveTags": [], "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."}], "id": "CVE-2026-4373", "lastModified": "2026-04-24T16:27:44.277", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 7.5, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 3.6, "source": "security@wordfence.com", "type": "Secondary"}]}, "published": "2026-03-21T07:16:10.380", "references": [{"source": "security@wordfence.com", "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"}], "sourceIdentifier": "security@wordfence.com", "vulnStatus": "Deferred", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-36"}], "source": "security@wordfence.com", "type": "Secondary"}]}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[0,3.5.6.2]"}}], "enrichment": {"confidence": 100.0, "confidence_source": "cna", "scores": [{"score": 100.0, "source": "cna"}]}, "original": {"product": "JetFormBuilder \u2014 Dynamic Blocks Form Builder", "source": "cna", "vendor": "jetmonsters"}, "product": "jetformbuilder_\u2014_dynamic_blocks_form_builder", "vendor": "jetmonsters"}, {"configurations": [{"platform": null, "status": "unaffected", "versions": null}], "enrichment": {"confidence": 80.0, "confidence_source": "inferred", "scores": [{"score": 80.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "product": "wordpress", "vendor": "wordpress"}], "analysis": {"en": {"generated_at": "2026-03-21T08:21:15.275734+00:00", "value": {"mitigation_remediation": ["Upgrade JetFormBuilder to the latest available version (at least 3.5.6.3).", "Restrict form submissions containing Media Field and Send Email actions to authenticated users only."], "summary": {"action": "Patch Now", "impact": "Arbitrary file read"}, "threat_synthesis": {"affected_systems": "JetMonsters JetFormBuilder \u2013 Dynamic Blocks Form Builder for WordPress. All releases up to and including version 3.5.6.2 are vulnerable. WordPress sites running these plugin versions are at risk.\n\nSpecifically, the plugin\u2019s set_from_array in uploaded-file.php (line 99) and related file\u2011upload modules fail to validate the file path, allowing traversal outside the uploads directory.", "description_and_impact": "The JetFormBuilder plugin for WordPress allows an attacker to read any local file on the server. The vulnerability is caused by the set_from_array method accepting a file path from a Media Field preset JSON payload without verifying that the path resides in the uploads directory. When the form contains a Media Field and a Send Email action, a crafted request can be sent without authentication, causing the plugin to attach the requested file to an email and deliver it to the attacker. This path\u2011traversal flaw (CWE\u201136) enables data exfiltration by reading arbitrary files, potentially exposing sensitive configuration, credentials, or application source code.", "risk_and_exploitability": "The CVSS score of 7.5 indicates high impact. No EPSS data is available and the vulnerability is not listed in CISA\u2019s KEV catalog, but the path\u2011traversal flaw combined with unauthenticated form submission means exploitation is straightforward once a form with the vulnerable configuration exists. An attacker who can submit a form to the site does not need authentication and can obtain any file the web server can read, making this a serious risk for sites that store sensitive files outside the uploads directory."}}}}, "created": "2026-03-23T09:49:40.843912+00:00", "updated": "2026-03-25T14:41:18.953086+00:00", "vendors": ["jetmonsters", "jetmonsters$PRODUCT$jetformbuilder_\u2014_dynamic_blocks_form_builder", "wordpress", "wordpress$PRODUCT$wordpress"]}