JetFormBuilder <= 3.5.6.2 - Unauthenticated Arbitrary File Read via Media Field
| CVE | CVE-2026-4373 |
|---|---|
| CVSS | 7.5 (High) |
| Publicly Published | March 20, 2026 |
| Last Updated | March 21, 2026 |
| Researcher |
daroo
|
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.
References
- plugins.trac.wordpress.org
- plugins.trac.wordpress.org
- plugins.trac.wordpress.org
- plugins.trac.wordpress.org
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Vulnerability Details for JetFormBuilder — Dynamic Blocks Form Builder
| Software Type | Plugin |
|---|---|
| Software Slug | jetformbuilder (view on wordpress.org) |
| Patched? | Yes |
| Remediation | Update to version 3.5.6.3, or a newer patched version |
| Affected Version |
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| Patched Version |
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Recent vulnerabilities in JetFormBuilder — Dynamic Blocks Form Builder
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