An Insecure Direct Object Reference (IDOR) vulnerability was identified in the `POST /v1/templates` endpoint of the Lunary API, affecting versions up to 0.8.8. This vulnerability allows authenticated users to create templates in another user's project by altering the `projectId` query parameter. The root cause of this issue is the absence of server-side validation to ensure that the authenticated user owns the specified `projectId`. The vulnerability has been addressed in version 1.9.23.

An Insecure Direct Object Reference (IDOR) vulnerability was identified in the `POST /v1/templates` endpoint of the Lunary API, affecting versions up to 0.8.8. This vulnerability allows authenticated users to create templates in another user's project by altering the `projectId` query parameter. The root cause of this issue is the absence of server-side validation to ensure that the authenticated user owns the specified `projectId`. The vulnerability has been addressed in version 1.9.23.