CVE-2026-70596: Ghost: Cross-Site Scripting in Feature Image Captions
An input validation issue allowed any staff user to create a post with content that could be used to hijack another staff user’s Ghost Admin session resulting in privilege escalation.
References
- github.com/TryGhost/Ghost/commit/a8bea3a4ceec4c852b880f4885119453c3d8588e
- github.com/TryGhost/Ghost/pull/29635
- github.com/TryGhost/Ghost/releases/tag/v6.54.1
- github.com/TryGhost/Ghost/security/advisories/GHSA-pr22-p9rp-2cqv
- github.com/advisories/GHSA-pr22-p9rp-2cqv
- nvd.nist.gov/vuln/detail/CVE-2026-70596
Code Behaviors & Features
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