Vulnerability GHSA-83rp-q473-j88c
Summary
Ghost: Path Traversal Vulnerability in Ghost ImageSize Service
Details
Impact
An input validation issue may have allowed staff users to access local files outside the intended data storage directories on the server.
Vulnerable versions
This vulnerability is present in Ghost from v6.14.0 up to v6.27.0.
Patches
v6.27.0 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 l3tchupkt and [email protected] for disclosing this vulnerability responsibly.
For more information
If you have any questions or comments about this advisory, email us at [email protected].
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