CVE-2026-70596

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.

CVSS Vector

References

• https://github.com/TryGhost/Ghost/commit/a8bea3a4ceec4c852b880f4885119453c3d8588e
• https://github.com/TryGhost/Ghost/pull/29635
• https://github.com/TryGhost/Ghost/releases/tag/v6.54.1
• https://github.com/TryGhost/Ghost/security/advisories/GHSA-pr22-p9rp-2cqv