medium4.3
CVE-2026-70596
Ghost: Cross-Site Scripting in Feature Image Captions
Impact
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.
Affected packages
| Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|
| npm | ghost | >= 4.9.0, < 6.54.1 | 6.54.1 |
Weakness classification
References
- NVD record
- CVE.org record
- GitHub advisory
- https://github.com/advisories/GHSA-pr22-p9rp-2cqv
- https://github.com/TryGhost/Ghost/security/advisories/GHSA-pr22-p9rp-2cqv
- https://github.com/TryGhost/Ghost/pull/29635
- https://github.com/TryGhost/Ghost/commit/a8bea3a4ceec4c852b880f4885119453c3d8588e
- https://github.com/TryGhost/Ghost/releases/tag/v6.54.1