npm · ghost
Ghost: Member existence leak via magic link sign-in response
A discrepancy in responses from the members signin endpoints made it possible for an unauthenticated attacker to determine whether a given email address belongs to a registered member of a Ghost site.
This vulnerability is present in Ghost from v5.18.0 up to v6.21.0.
v6.21.1 contains a fix for this issue.
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.
If you have any questions or comments about this advisory, email Ghost at security@ghost.org.
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