CVE-2026-90896 Missing authentication in Ecommerce Template checkout session endpoint allows unauthenticated disclosure of buyer PII

Missing Authentication for Critical Function CWE-306 in the checkout session lookup handler src/app/api/stripe/checkoutsessions/route.ts, exposed at GET /api/stripe/checkoutsessions, in MarcosCamara01 Ecommerce Template before commit 91e273c allows a remote, unauthenticated attacker holding a val...