brainstormforce SureForms Plugin up to 2.2.1 Payment Intent create_payment_intent/create_subscription_intent input validation

Summaryinfo

A vulnerability was found in brainstormforce SureForms Plugin up to 2.2.1. It has been rated as problematic. This vulnerability affects the function create_payment_intent/create_subscription_intent of the component Payment Intent Handler. Performing a manipulation results in input validation. This vulnerability is identified as CVE-2026-15288. The attack can be initiated remotely. There is not any exploit available.

Detailsinfo

A vulnerability, which was classified as problematic, was found in brainstormforce SureForms Plugin up to 2.2.1. This affects the function create_payment_intent/create_subscription_intent of the component Payment Intent Handler. The manipulation with an unknown input leads to a input validation vulnerability. CWE is classifying the issue as CWE-20. The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly. This is going to have an impact on integrity. The summary by CVE is:

The SureForms – Drag and Drop Form Builder for WordPress plugin for WordPress is vulnerable to Improper Input Validation in all versions up to, and including, 2.2.1. This is due to the plugin accepting the payment amount directly from user-controlled POST data in the 'create_payment_intent' and 'create_subscription_intent' functions without validating it against the form's configured price. This makes it possible for unauthenticated attackers to modify the payment amount to any arbitrary value when submitting a Stripe payment form, potentially purchasing products or services at significantly reduced prices.

It is possible to read the advisory at wordfence.com. This vulnerability is uniquely identified as CVE-2026-15288 since 07/09/2026. The exploitability is told to be easy. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. It demands that the victim is doing some kind of user interaction. Technical details of the vulnerability are known, but there is no available exploit. The pricing for an exploit might be around USD $0-$5k at the moment (estimation calculated on 07/10/2026).

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

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Productinfo

Type

• WordPress Plugin

Vendor

• brainstormforce

Name

• SureForms Plugin

Version

• 2.2.0
• 2.2.1

CPE 2.3info

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CPE 2.2info

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