GHSA-cj62-hvv2-2q5h

### Impact An Administrator-level user could remotely overwrite certain files on the filesystem leading to integrity and availability issues. ### Vulnerable versions This vulnerability is present in Ghost from 1.20.1 up to v6.54.0. ### Patches v6.54.1 contains a fix for this issue. ### How to update For self-hosters using Docker, find [Docker's official Ghost image here](https://hub.docker.com/_/ghost). Updating a Docker-based Ghost instance [is documented here](https://docs.ghost.org/install/docker#updating-ghost). If your Ghost is a Ghost-CLI install see our documentation on [updating it to the latest version here](https://docs.ghost.org/update). ### Workarounds If upgrading immediately is not possible, set *disableJSBackups* to "true" by running: ```sh $ ghost config set disableJSBackups true $ ghost restart ``` ### References Ghost thanks Jorian Woltjer of Aikido Security, Mitchell Benjamin of Revamp Studio, and meifukun for disclosing this vulnerability responsibly. ### For more information If you have any questions or comments about this advisory, email Ghost at [[email protected]](mailto:[email protected]).