CVE-2026-24778
January 27, 2026
Ghost is an open source content management system. In Ghost versions 5.43.0 through 5.12.04 and 6.0.0 through 6.14.0, an attacker was able to craft a malicious link that, when accessed by an authenticated staff user or member, would execute JavaScript with the victim's permissions, potentially leading to account takeover. Ghost Portal versions 2.29.1 through 2.51.4 and 2.52.0 through 2.57.0 were vulnerable to this issue. Ghost automatically loads the latest patch of the members Portal component via CDN. For Ghost 5.x users, upgrading to v5.121.0 or later fixes the vulnerability. v5.121.0 loads Portal v2.51.5, which contains the patch. For Ghost 6.x users, upgrading to v6.15.0 or later fixes the vulnerability. v6.15.0 loads Portal v2.57.1, which contains the patch. For Ghost installations using a customized or self-hosted version of Portal, it will be necessary to manually rebuild from or update to the latest patch version.
Affected Packages
https://github.com/TryGhost/Ghost.git (GITHUB):
Affected version(s) >=v5.43.0 <v5.121.0Fix Suggestion:
Update to version v5.121.0https://github.com/TryGhost/Ghost.git (GITHUB):
Affected version(s) >=v6.0.0 <v6.15.0Fix Suggestion:
Update to version v6.15.0https://github.com/TryGhost/Ghost.git (GITHUB):
Affected version(s) >=@tryghost/portal@2.29.1 <@tryghost/portal@2.51.5Fix Suggestion:
Update to version @tryghost/portal@2.51.5ghost (NPM):
Affected version(s) >=5.43.0 <5.121.0Fix Suggestion:
Update to version 5.121.0ghost (NPM):
Affected version(s) >=6.0.0 <6.15.0Fix Suggestion:
Update to version 6.15.0@tryghost/portal (NPM):
Affected version(s) >=2.29.1 <2.51.5Fix Suggestion:
Update to version 2.51.5@tryghost/portal (NPM):
Affected version(s) >=2.52.0 <2.57.1Fix Suggestion:
Update to version 2.57.1Related Resources (4)
Do you need more information?
Contact UsCVSS v4
Base Score:
8.7
Attack Vector
NETWORK
Attack Complexity
LOW
Attack Requirements
NONE
Privileges Required
NONE
User Interaction
PASSIVE
Vulnerable System Confidentiality
HIGH
Vulnerable System Integrity
HIGH
Vulnerable System Availability
HIGH
Subsequent System Confidentiality
NONE
Subsequent System Integrity
NONE
Subsequent System Availability
NONE
CVSS v3
Base Score:
8.8
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Weakness Type (CWE)
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
EPSS
Base Score:
0.01
