CVE-2026-17016

The Accept PayPal & Stripe with Subscriptions for WooCommerce WordPress plugin through 3.1.0 does not validate the amount actually paid against the order total in its PayPal Data Transfer return handler, allowing a customer to pay less than the order total and still have the order marked as fully...

EUVD-2026-55027

The Accept PayPal & Stripe with Subscriptions for WooCommerce WordPress plugin through 3.1.0 does not validate the amount actually paid against the order total in its PayPal Data Transfer return handler, allowing a customer to pay less than the order total and still have the order marked as fully...

CVE-2026-17016 Restore PayPal Standard for WooCommerce <= 3.1.0 - Payment Bypass via PDT Underpayment

The Accept PayPal & Stripe with Subscriptions for WooCommerce WordPress plugin through 3.1.0 does not validate the amount actually paid against the order total in its PayPal Data Transfer return handler, allowing a customer to pay less than the order total and still have the order marked as fully...

CVE-2026-17016

The Accept PayPal & Stripe with Subscriptions for WooCommerce WordPress plugin through 3.1.0 does not validate the amount actually paid against the order total in its PayPal Data Transfer return handler, allowing a customer to pay less than the order total and still have the order marked as fully...

CVE-2026-17016

The CVE-2026-17016 entry concerns the WordPress plugin “Accept PayPal & Stripe with Subscriptions for WooCommerce” (versions up to 3.1.0). The vulnerability arises in the PayPal Data Transfer (PDT) return handler, which does not validate that the amount paid matches the order total, enabling a cu...

CVE-2026-11567

The SureForms WordPress plugin before 2.11.1 does not properly validate the payment amount on forms that use a dynamically-sourced variable/hidden payment amount, allowing unauthenticated users to underpay for the configured product or subscription. Forms using a fixed configured price are not...

CVE-2026-11567

The SureForms WordPress plugin before 2.11.1 does not properly validate the payment amount on forms that use a dynamically-sourced variable/hidden payment amount, allowing unauthenticated users to underpay for the configured product or subscription. Forms using a fixed configured price are not...

CVE-2026-11567 SureForms < 2.11.1 - Unauthenticated Payment Amount Bypass

The SureForms WordPress plugin before 2.11.1 does not properly validate the payment amount on forms that use a dynamically-sourced variable/hidden payment amount, allowing unauthenticated users to underpay for the configured product or subscription. Forms using a fixed configured price are not...

CVE-2026-11567

The CVE concerns the SureForms WordPress plugin prior to version 2.11.1, which fails to validate payment amounts on forms that use a dynamically sourced (variable/hidden) price. This allows unauthenticated users to underpay for the configured product or subscription; forms with fixed prices are n...

EUVD-2026-43625

The SureForms WordPress plugin before 2.11.1 does not properly validate the payment amount on forms that use a dynamically-sourced variable/hidden payment amount, allowing unauthenticated users to underpay for the configured product or subscription. Forms using a fixed configured price are not...

CVE-2026-43928

FOSSBilling is a free, open-source billing and client management system. Prior to version 0.8.0, the PayPalEmail payment adapter accepts PayPal IPN callbacks and credits the IPN-supplied amount mcgross to the client's balance without validating it against the invoice total. Combined with a $0.05...

CVE-2026-43928 FOSSBilling: Payment amount not validated in PayPalEmail adapter allows invoice underpayment

FOSSBilling is a free, open-source billing and client management system. Prior to version 0.8.0, the PayPalEmail payment adapter accepts PayPal IPN callbacks and credits the IPN-supplied amount mcgross to the client's balance without validating it against the invoice total. Combined with a $0.05...

CVE-2026-43928 FOSSBilling: Payment amount not validated in PayPalEmail adapter allows invoice underpayment

FOSSBilling is a free, open-source billing and client management system. Prior to version 0.8.0, the PayPalEmail payment adapter accepts PayPal IPN callbacks and credits the IPN-supplied amount mcgross to the client's balance without validating it against the invoice total. Combined with a $0.05...

CVE-2026-43928

FOSSBilling PayPalEmail integration before 0.8.0 credits mc_gross from IPN without validating against the invoice total, combined with a $0.05 epsilon in the credit logic, enabling underpayment of up to $0.04 while marking invoices as paid. Version 0.8.0 patches the issue. No public workaround ex...

CVE-2026-43928

FOSSBilling is a free, open-source billing and client management system. Prior to version 0.8.0, the PayPalEmail payment adapter accepts PayPal IPN callbacks and credits the IPN-supplied amount mcgross to the client's balance without validating it against the invoice total. Combined with a $0.05...

PT-2026-56032

Name of the Vulnerable Software and Affected Versions FOSSBilling versions prior to 0.8.0 Description The PayPalEmail payment adapter fails to validate the amount supplied via PayPal IPN Instant Payment Notification callbacks, specifically the mc gross variable, against the actual invoice total...

CVE-2026-2729

CVE-2026-2729 affects the WordPress plugin Forminator (versions up to 1.52.0). The vulnerability arises from missing authorization when processing attacker-supplied Stripe PaymentIntent identifiers during the public payment flow, allowing unauthenticated attackers to submit high-value paid forms ...

CVE-2026-2729 Forminator – Contact Form, Payment Form & Custom Form Builder <= 1.52.0 - Missing Authorization to Unauthenticated Stripe PaymentIntent Reuse / Underpayment Bypass via 'paymentid' Parameter

The Forminator plugin for WordPress is vulnerable to authorization bypass in all versions up to, and including, 1.52.0. This is due to the plugin not properly verifying that a user is authorized to perform an action when processing attacker-supplied Stripe PaymentIntent identifiers in the public...

WordPress Forminator Forms – Contact Form, Payment Form & Custom Form Builder plugin <= 1.52.0 - Missing Authorization to Unauthenticated Stripe PaymentIntent Reuse / Underpayment Bypass vulnerability

Missing Authorization to Unauthenticated Stripe PaymentIntent Reuse / Underpayment Bypass vulnerability discovered by Kittipat Jitphonchana in WordPress Plugin Forminator versions = 1.52.0...

A user could call mint() with less ETH than the mintPrice and improperly mint badges for a cheaper cost.

Lines of code Vulnerability details Impact users underpaying to mint badges will lead to loss of funds Proof of Concept It checks if msg.value is less than the required mintPrice, but it does not check for the case where msg.value mintPrice. This means: A user could send only 1 wei when the...