GHSA-4pvx-fwjj-8gpc Ghost: Editors Could Promote Staff Users to Their Own Role

• npm ghost: >= 0.5.0, < 6.64.0 → fixed in 6.64.0

Impact Staff users with the Editor or Super Editor role were able to assign their own role to Author and Contributor users, despite not having permission to assign that role. Vulnerable versions This vulnerability is present in Ghost from v0.5.0 up to v6.64.0. Patches v6.64.0 contains a fix for this issue. How to update For self-hosters using Docker, find Docker's official Ghost image here. Updating a Docker-based Ghost instance is documented here. If your Ghost is a Ghost-CLI install see our documentation on updating it to the latest version here. References Ghost thanks SecBuddyF of Tencent KeenLab, Santosh Kumar Puppala, Pedro Pinho, and Nhat Anh Vu for disclosing this vulnerability responsibly. For more information If you have any questions or comments about this advisory, email us at [email protected].