Ghost is a Node.js content management system. From 0.7.2 until 6.64.0, any staff-level user was able to determine the relative ordering of other staff users' hashed passwords. This does not directly disclose password hashes, and does not provide a practical path to recovering a password. This issue is fixed in version 6.64.0.
https://github.com/TryGhost/Ghost/security/advisories/GHSA-53vv-xm9f-mm82
https://github.com/TryGhost/Ghost/releases/tag/v6.64.0
https://github.com/TryGhost/Ghost/pull/30760
https://github.com/TryGhost/Ghost/commit/4fb587e4d49667f929b87f7d6a873ae5e9cc087f