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-2026-43928

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-2023-23941: Insufficient Verification of Data Authenticity

SwagPayPal is a PayPal integration for shopware/platform. If JavaScript-based PayPal checkout methods are used PayPal Plus, Smart Payment Buttons, SEPA, Pay Later, Venmo, Credit card, the amount and item list sent to PayPal may not be identical to the one in the created order. The problem has bee...

SwagPayPal 数据伪造问题漏洞

SwagPayPal is an open source PayPal integration for Shopware, a store software/platform. SwagPayPal suffers from a data forgery issue vulnerability that stems from the fact that the list of amounts and items sent to PayPal may not match those in the created order...