Ghost: Member existence leak via magic link sign-in response
### Impact 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. ### Vulnerable versions This vulnerability is present in Ghost from v5.18.0 up to v6.21.0. ### Patches v6.21.1 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). ### For more information If you have any questions or comments about this advisory, email Ghost at [security@ghost.org](mailto:security@ghost.org).
beschreibt (1)
Zugehörige CVEs.
| ID | Schweregrad | ausnutzbar | ||
|---|---|---|---|---|
| CVE-2026-53947US | — | — | ||
Ghost is a Node.js content management system. From 5.18.0 until 6.21.1, a discrepancy in responses from the members signin endpoints made it possible for an unauthenticated attacke… | ||||
Referenzen
Externe Belege — Patches, Meldungen, Analysen.
- https://github.com/TryGhost/GhostPACKAGE
- https://github.com/TryGhost/Ghost/commit/fb2bb634653d99de68fc42d415721d755284fe30WEB
- https://github.com/TryGhost/Ghost/pull/26752WEB
- https://github.com/TryGhost/Ghost/releases/tag/v6.21.1WEB
- https://github.com/TryGhost/Ghost/security/advisories/GHSA-chgm-3698-jm42WEB
- https://nvd.nist.gov/vuln/detail/CVE-2026-53947ADVISORY
Advisories wie diese benennen die exponierten Produkte, die Angreifer auf Ihrer Angriffsfläche ins Visier nehmen. Sehen Sie mit einem kostenlosen Passiv-Scan, was exponiert ist.
Kostenloser Scan