JetFormBuilder <= 3.5.6.2 - Unauthenticated Arbitrary File Read via Media Field
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.
Affected software
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| Platform | Package | Vulnerable versions | Fixed in |
|---|---|---|---|
| WordPress plugin | JetFormBuilder — Dynamic Blocks Form Builder | <= 3.5.6.2 | 3.5.6.3 |
References
- CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N- Weakness (CWE)
CWE-36- Platform
- WordPress
- Package
JetFormBuilder — Dynamic Blocks Form Builder- Disclosed
- 20.03.2026
- Updated
- 11.10.2026 10:22
Sources and licenses
Wordfence Intelligence - 1801fd3e-d56f-4540-9700-9e9de8b465e1 - Wordfence Intelligence
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Vulnerability history: JetFormBuilder — Dynamic Blocks Form Builder
All published vulnerabilities of this package (WordPress plugin), newest first. Shows whether this is a one-off slip or a package that needs watching.
- Total entries
- 25
- First → latest
- 05.2023 10.2026
- Without a fix
- 0
- Exploited in attacks
- 0
Severity breakdown
- Critical 2
- High 10
- Medium 13
Disclosures per year
- 2023: 3
- 2024: 1
- 2025: 3
- 2026: 18
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JetFormBuilder <= 3.5.6.2 - Unauthenticated Arbitrary File Read via Media Field this entry
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