CVE-2026-90922 Paid Member Subscriptions < 3.0.9 - Unauthenticated Membership Payment Bypass via PayPal Standard Amount and Currency Mismatch

The Paid Membership Subscriptions WordPress plugin before 3.0.9 does not verify that the amount and currency reported by the payment provider match the pending payment before completing it, allowing unauthenticated users to obtain a paid membership by paying an arbitrary lower amount...

CVE-2026-90922

CVE-2026-90922 affects the Paid Membership Subscriptions WordPress plugin in versions prior to 3.0.9 . The root cause is a missing verification of the amount and currency reported by PayPal Standard against the pending payment before completing the transaction. This allows an unauthenticated user...

CVE-2026-88764 Simple Membership < 4.7.8 - Subscriber+ Membership Level Escalation via PayPal Standard subsc_ref

The Simple Membership WordPress plugin before 4.7.8 does not validate that the membership level supplied in a PayPal payment notification matches the level configured for the paid payment button, allowing members to pay for a lower-priced membership while being granted a higher, more privileged...

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...

EUVD-2013-0161

Malware in sbrugna...

Malicious code in paypal-standard-integration-react-ib (npm)

--- -= Per source details. Do not edit below this line.=- Source: ghsa-malware 6521cab55325b37c4d38ef5d9c7136a36024b1e4615b1ef885089e708edf6376 Any computer that has this package installed or running should be considered fully compromised. All secrets and keys stored on that computer should be...

WordPress WooCommerce plugin <= 6.3.0 - Orders Status Change (via PayPal Standard Gateway) vulnerability

Orders Status Change via PayPal Standard Gateway vulnerability discovered in WordPress WooCommerce plugin versions = 6.3.0. Solution Update the WordPress WooCommerce plugin to the latest available version at least 6.3.1...

WooCommerce < 6.3.1 - Orders Marked as Paid (via PayPal Standard Gateway)

The PayPal Standard payment gateway deprecated since July 2021 of the plugin could allow attackers to mark an order as paid without actually making a payment, when PDT is enabled...

Code injection

CS-Cart before 3.0.6, when PayPal Standard Payments is configured, allows remote attackers to set the payment recipient via a modified value of the merchant's e-mail address, as demonstrated by setting the recipient to one's self...

CS-Cart v3.0.4 configured with PayPal Standard Payments design vulnerability

Overview CS-Cart v3.0.4 and possibly other versions configured with PayPal Standard Payment is susceptible to a client-side attack that results in an attacker purchasing items without having to pay for them. Description It has been reported that CS-Cart v3.0.4 configured with PayPal Standard...