Ghost is a Node.js content management system. Improper authentication on some endpoints used for member actions would allow an attacker to perform member-only actions, and read member information. This security vulnerability is present in Ghost v4.46.0-v5.89.4. v5.89.5 contains a fix for this issue.
The product does not restrict or incorrectly restricts access to a resource from an unauthorized actor.
When an actor claims to have a given identity, the product does not prove or insufficiently proves that the claim is correct.