CVE-2026-53947: Observable Response Discrepancy

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...

PT-2026-52071

Name of the Vulnerable Software and Affected Versions Ghost versions 5.18.0 through 6.21.0 Description A discrepancy in responses from the members signin endpoints allows an unauthenticated attacker to determine if a specific email address is registered as a member of the site. Recommendations...