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.

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Fixes

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History

Tue, 24 Mar 2026 14:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Mon, 23 Mar 2026 10:00:00 +0000

Type Values Removed Values Added
First Time appeared Jetmonsters
Jetmonsters jetformbuilder — Dynamic Blocks Form Builder
Wordpress
Wordpress wordpress
Vendors & Products Jetmonsters
Jetmonsters jetformbuilder — Dynamic Blocks Form Builder
Wordpress
Wordpress wordpress

Sat, 21 Mar 2026 07:15:00 +0000

Type Values Removed Values Added
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.
Title JetFormBuilder <= 3.5.6.2 - Unauthenticated Arbitrary File Read via Media Field
Weaknesses CWE-36
References
Metrics cvssV3_1

{'score': 7.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N'}


Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: Wordfence

Published:

Updated: 2026-03-24T14:05:24.476Z

Reserved: 2026-03-18T10:15:15.895Z

Link: CVE-2026-4373

cve-icon Vulnrichment

Updated: 2026-03-24T14:05:19.367Z

cve-icon NVD

Status : Awaiting Analysis

Published: 2026-03-21T07:16:10.380

Modified: 2026-03-23T14:31:37.267

Link: CVE-2026-4373

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-03-23T09:49:40Z

Weaknesses