CVE-2026-53947 — Ghost: Member existence leak via magic link sign-in response
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 atta…
Published: 2026-06-24 · CVSS: 5.3 · CVSS 3.1
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.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7