CVE-2026-70596

Published: Aug 5, 2026Modified: Sep 8, 2026Deferred

4.3

Vector

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

Exploitability: 0.9 / Impact: 3.4

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

Description

Ghost is a Node.js content management system. From 4.9.0 until 6.54.1, an input validation issue allowed any staff user to create a post with content in feature_image_caption that could be used to hijack another staff user's Ghost Admin session, resulting in privilege escalation. This issue is fixed in 6.54.1.

Related CWEs

CWE-79

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.

References (4)

https://github.com/TryGhost/Ghost/commit/a8bea3a4ceec4c852b880f4885119453c3d8588e

Source: security-advisories@github.com

https://github.com/TryGhost/Ghost/pull/29635

Source: security-advisories@github.com

https://github.com/TryGhost/Ghost/releases/tag/v6.54.1

Source: security-advisories@github.com

https://github.com/TryGhost/Ghost/security/advisories/GHSA-pr22-p9rp-2cqv

Source: security-advisories@github.com

Timeline

No history available yet.