CVE-2026-42341

FOSSBilling is a free, open-source billing and client management system. Versions 0.6.0 through 0.7.2 have an unauthenticated payment bypass vulnerability in FOSSBilling's IPN callback endpoint. When the Custom payment adapter is enabled, an attacker can mark any unpaid invoice as paid and credit...

WordPress User Registration & Membership – Free & Paid Memberships, Subscriptions, Content Restriction, User Profile, Custom User Registration & Login Builder plugin <= 5.2.0 - Missing Authorization to Unauthenticated Payment Bypass vulnerability

Missing Authorization to Unauthenticated Payment Bypass vulnerability discovered by Supakiad S. m3ez - E-CQURITY Thailand in WordPress Plugin User Registration versions = 5.2.0...

CVE-2025-14444

CVE-2025-14444 – RegistrationMagic for WordPress has a payment bypass vulnerability in the process_paypal_sdk_payment path. The issue arises from trusting client-supplied payment data without validating that PayPal payment actually completed, enabling unauthenticated users to activate registratio...

CVE-2025-14757 Cost Calculator Builder <= 3.6.9 - Missing Authorization to Unauthenticated Payment Status Bypass

The Cost Calculator Builder plugin for WordPress is vulnerable to Unauthenticated Payment Status Bypass in all versions up to, and including, 3.6.9 only when used in combination with Cost Calculator Builder PRO. This is due to the completepayment AJAX action being registered via wpajaxnopriv,...

WordPress SKT PayPal for WooCommerce plugin <= 1.4 - Unauthenticated Payment Bypass vulnerability

Unauthenticated Payment Bypass vulnerability discovered by ch4r0n - FPT Software in WordPress Plugin SKT PayPal for WooCommerce versions = 1.4...

CVE-2024-2382 Authorize.net Payment Gateway For WooCommerce <= 8.0 - Insufficient Verification of Data Authenticity to Unauthenticated Payment Bypass

The Authorize.net Payment Gateway For WooCommerce plugin for WordPress is vulnerable to payment bypass in all versions up to, and including, 8.0. This is due to the plugin not properly verifying the authenticity of the request that updates a orders payment status. This makes it possible for...