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.
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Jetformbuilder Plugin | — | Update jetformbuilder plugin to version 3.5.6.3, or a newer patched version | Apr 30, 2026 | Mar 20, 2026 |
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