npm · ghost
Ghost: Paid gift memberships obtainable at minimal cost via the donations feature
A vulnerability in Ghost's public donation checkout flow allowed an unauthenticated attacker to obtain full paid gift memberships for a minimal payment. No customer or member data was exposed, and the issue could not be used to steal money from a site or its members.
This vulnerability is present in Ghost from v6.27.0 up to v6.43.1.
v6.44.0 contains a fix for this issue.
For self-hosters using Docker, find Docker’s official Ghost image on Docker Hub and follow the documentation on updating a Docker-based Ghost instance.
For self-hosters using Ghost-CLI, see the documentation for updating Ghost to the latest version.
If upgrading immediately is not possible, you can remove the vulnerable checkout path by disabling the donations feature in Ghost Admin under Settings → Membership → Tips & donations until the upgrade is applied.
Ghost thanks sane100400 and p4p3r for disclosing this vulnerability responsibly.
If you have any questions or comments about this advisory, email Ghost at security@ghost.org.
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Check my repoSources: CISA KEV (public domain), OSV.dev & GitHub Advisory Database (CC-BY-4.0), FIRST EPSS, NVD/CWE (public domain). Served live from the Stateward advisory database.