Vulnerabilities / Forminator Forms / WPSEC-2026-0623
Forminator Forms <= 1.57.3.1 - Unauthenticated PayPal Order Request Tampering via Form Submission
Medium 5.3
CWE-20Fixed in 1.58.0
- ID
- WPSEC-2026-0623
- Plugin
- Forminator Forms – Contact Form, Payment Form & Custom Form Builder (forminator)
- Affected
- all versions before 1.58.0
- Remediation
- Update to 1.58.0 or later.
- CVSS 3.1
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
- Weakness
- CWE-20
- Usage
- Plugin Medium · Affected versions Medium among sites WPSec scans, 2026-10-08
- Attack surface
- Forminator Forms on WPSec AttackSurface
- Fix released
- Published
Description
The Forminator Forms plugin for WordPress is vulnerable to request tampering in its PayPal order creation handler in all versions up to, and including, 1.57.3.1 due to client-supplied request data being merged into the PayPal create-order request. This makes it possible for unauthenticated attackers to add their own properties to the order sent to PayPal, such as an additional purchase unit, a payee or an application context, on forms that use a PayPal field. The amount recorded for the submission is re-validated against the form settings before the payment is captured.
References
- https://wpsec.com/vuln/WPSEC-2026-0623/
- https://plugins.svn.wordpress.org/forminator/tags/1.58.0/
- https://wordpress.org/plugins/forminator/
Published by WPSec. Provided as is, without warranty. Corrections: contact us.
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