EUVD-2026-70849

Missing authorization vulnerability has been discovered in 2Checkout payment gateway of WHMCS from 8.13.0 before 8.13.8, from 9.0.0 before 9.0.8, all other EOL versions from 4.5.0. The vulnerability allows an unauthenticated user to get WHMCS customer's data via 2Checkout payment gateway's endpoi...

CVE-2026-67398

Missing authorization vulnerability has been discovered in 2Checkout payment gateway of WHMCS from 8.13.0 before 8.13.8, from 9.0.0 before 9.0.8, all other EOL versions from 4.5.0. The vulnerability allows an unauthenticated user to get WHMCS customer's data via 2Checkout payment gateway's endpoi...

CVE-2026-67398

CVE-2026-67398 is a missing authorization flaw in the 2Checkout payment gateway integration of WHMCS . An unauthenticated attacker can enumerate invoice IDs and retrieve customer personal data through the 2Checkout endpoint under specific conditions. Affected versions include all WHMCS 4.5.0+ (EO...

CVE-2026-67398

Missing authorization vulnerability has been discovered in 2Checkout payment gateway of WHMCS from 8.13.0 before 8.13.8, from 9.0.0 before 9.0.8, all other EOL versions from 4.5.0. The vulnerability allows an unauthenticated user to get WHMCS customer's data via 2Checkout payment gateway's endpoi...