CVE-2026-4987
SureForms <= 2.5.2 - Unauthenticated Payment Amount Validation Bypass via 'form_id'
HIGH 7.5EPSS 1.2%
The SureForms – Contact Form, Payment Form & Other Custom Form Builder plugin for WordPress is vulnerable to Payment Amount Bypass in all versions up to, and including, 2.5.2. This is due to the create_payment_intent() function performing a payment validation solely based on the value of a user-controlled parameter. This makes it possible for unauthenticated attackers to bypass configured form payment-amount validation and create underpriced payment/subscription intents by setting form_id to 0.
- Affected
- brainstormforce · SureForms – Contact Form, Payment Form & Other Custom Form Builder
- CVSS v3.1 WORDFENCE
- 7.5 HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N - EPSS
- 1.16% chance of exploitation in the next 30 days, 67th percentile
- Nuclei
- high · CWE-20
- Published
- 2026-03-28
- Updated
- 2026-04-08