CVE-2026-53947

Published: Jun 24, 2026Modified: Jun 25, 2026Deferred

5.3

Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

Exploitability: 3.9 / Impact: 1.4

Source: security-advisories@github.com (Secondary)

Description

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.

Related CWEs

CWE-204

Observable Response Discrepancy

The product provides different responses to incoming requests in a way that reveals internal state information to an unauthorized actor outside of the intended control sphere.

References (1)

https://github.com/TryGhost/Ghost/security/advisories/GHSA-chgm-3698-jm42

Source: security-advisories@github.com

Timeline

No history available yet.