CVE-2026-4987
SureForms <= 2.5.2 - Unauthenticated Payment Amount Validation Bypass via 'form_id'
- State
- Published
- Severity
- 7.5 High
- Published
- Mar 28, 2026
- Updated
- Apr 8, 2026
- Reserved
- Mar 27, 2026
Description
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 3.1 | 7.5 High | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N | Wordfence |
Weaknesses
- CWE-20 Improper Input Validation
Affected Products
| Product | Versions |
|---|---|
SureForms – Contact Form, Payment Form & Other Custom Form Builderbrainstormforce |
|
References
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