AIKIDO-2026-723703

TL;DR

The Admin API adjustDraftOrderLine mutation is decorated with Permission.Owner, a permissive permission that the auth guard grants to any request lacking the other required permission, even creating an anonymous session when none is present. As a result the admin-only mutation is reachable without authentication, and the order is resolved from the caller-supplied orderId with no ownership check. An unauthenticated caller can change line quantities and custom fields on in-progress orders they do not own, and order and line ids are small sequential integers that are trivially enumerable. The fix removes Permission.Owner so the mutation requires a genuine admin permission, matching its sibling draft-order mutations.