{"id":"CVE-2026-4373","aliases":["EUVD-2026-14240","GHSA-947p-f7h4-wr4m"],"status":"published","title":"JetFormBuilder \u003c= 3.5.6.2 - Unauthenticated Arbitrary File Read via Media Field","description":"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.","severity":{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","level":"high","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-09","score":0.00414,"percentile":0.35934,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-36"],"published":"2026-03-21T06:45:13Z","modified":"2026-06-17T10:56:29Z","products":[{"vendor":"jetmonsters","product":"jetformbuilder — dynamic blocks form builder"}],"references":[{"url":"https://www.wordfence.com/threat-intel/vulnerabilities/id/1801fd3e-d56f-4540-9700-9e9de8b465e1?source=cve"},{"url":"https://plugins.trac.wordpress.org/browser/jetformbuilder/tags/3.5.6.2/includes/classes/resources/uploaded-file.php#L99"},{"url":"https://plugins.trac.wordpress.org/browser/jetformbuilder/tags/3.5.6.2/modules/block-parsers/file-uploader.php#L313"},{"url":"https://plugins.trac.wordpress.org/browser/jetformbuilder/tags/3.5.6.2/modules/actions-v2/send-email/send-email-action.php#L214"},{"url":"https://plugins.trac.wordpress.org/changeset/3486996/jetformbuilder"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-4373"},{"url":"https://github.com/advisories/GHSA-947p-f7h4-wr4m"}],"sources":{"cve":[{"id":"CVE-2026-4373","title":"JetFormBuilder \u003c= 3.5.6.2 - Unauthenticated Arbitrary File Read via Media Field","description":"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.","status":"published","published":"2026-03-21T06:45:13.779Z","modified":"2026-04-08T16:37:34.037Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","level":"high","assessor":"cna"}],"cwes":["CWE-36"],"updated_at":"2026-11-02T14:19:58.944663Z"}],"euvd":[{"id":"EUVD-2026-14240","description":"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.","status":"published","published":"2026-03-21T06:45:13Z","modified":"2026-04-08T16:37:34Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","level":"high"}],"updated_at":"2026-11-02T19:25:07.886903Z"}],"ghsa":[{"id":"GHSA-947p-f7h4-wr4m","title":"The JetFormBuilder plugin for WordPress is vulnerable to arbitrary file read via path traversal...","description":"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.","status":"published","published":"2026-03-21T09:31:27Z","modified":"2026-03-21T09:31:30Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","level":"high"}],"cwes":["CWE-36"],"updated_at":"2026-11-02T15:06:45.979177Z"}],"nvd":[{"id":"CVE-2026-4373","description":"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.","status":"published","published":"2026-03-21T07:16:10.38Z","modified":"2026-06-17T10:56:29.817Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","level":"high","assessor":"secondary"}],"cwes":["CWE-36"],"updated_at":"2026-11-02T14:12:10.126802Z"}]}}