CVE-2025-3479 MEDIUM

CVE-2025-3479: Forminator <= 1.42.0 - Order Replay Vulnerability

Vendor Wpmudev
Product Forminator Forms – Contact Form, Payment Form & Custom Form Builder
Weakness CWE-354
Published April 17, 2025
Last update April 8, 2026

CVSS base score

5.3/10
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Confidentiality None
Integrity Low

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

What the vulnerability does

01Description

The Forminator Forms – Contact Form, Payment Form & Custom Form Builder plugin for WordPress is vulnerable to Order Replay in all versions up to, and including, 1.42.0 via the 'handle_stripe_single' function due to insufficient validation on a user controlled key. This makes it possible for unauthenticated attackers to reuse a single Stripe PaymentIntent for multiple transactions. Only the first transaction is processed via Stripe, but the plugin sends a successful email message for each transaction, which may trick an administrator into fulfilling each order.

Explanation of Vulnerability in Simple Terms

02Summary

Forminator Forms versions up to 1.42.0 contain an integrity vulnerability that allows unauthenticated attackers to modify data via the network. The vulnerability requires no user interaction and affects the form builder's data handling. Site administrators should update to a version newer than 1.42.0 to remediate this issue.

What an attacker can do

03Attacker Capabilities

Modify form data or submissions without authentication.

Potential impact on your site

04Site Impact

Form data integrity cannot be guaranteed; submissions may be altered by unauthorized parties.

Conditions required to exploit

05Prerequisites

Network access only; no authentication or user interaction required.

Key dates

06Disclosure timeline

April 17, 2025 CVE published
April 8, 2026 Record updated