BIT-ghost-2026-53947

vendorUSosv

Ghost: Member existence leak via magic link sign-in response

view advisory published 2026-06-30Licence: per source

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 attacker to determine whether a given email address belongs to a registered member of a Ghost site. This vulnerability is fixed in 6.21.1.

describes (1)

Related CVEs.

ID	severity	EPSS	exploitable	published
CVE-2026-53947US	—	0.34% (28th)	—	2026-06-24
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…

references

External citations — patches, advisories, analysis.

https://github.com/TryGhost/Ghost/security/advisories/GHSA-chgm-3698-jm42WEB
https://nvd.nist.gov/vuln/detail/CVE-2026-53947WEB

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