CVE-2025-13317

The WordPress plugin “Appointment Booking Calendar” is affected up to version 1.3.96 by a Missing Authorization vulnerability. An unauthenticated endpoint (cpabc_appointments_check_IPN_verification) trusts attacker-supplied payment notifications and, via the cpabc_ipncheck parameter, allows unaut...

CVE-2025-13317: Missing Authorization

The Appointment Booking Calendar plugin for WordPress is vulnerable to Missing Authorization in all versions up to, and including, 1.3.96. This is due to the plugin exposing an unauthenticated booking processing endpoint cpabcappointmentscheckIPNverification that trusts attacker-supplied payment...

WordPress Appointment Booking Calendar plugin <= 1.3.96 - Missing Authorization to Arbitrary Booking Confirmation via 'cpabc_ipncheck' Parameter vulnerability

Missing Authorization to Arbitrary Booking Confirmation via 'cpabcipncheck' Parameter vulnerability discovered by Md. Moniruzzaman Prodhan NomanProdhan - Knight Squad in WordPress Plugin Appointment Booking Calendar versions = 1.3.96...