CVE-2026-70596 in Ghost

Summary

by MITRE • 08/05/2026

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.

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• Responsible: GitHub M
• Reservation: 08/04/2026
• Disclosure: 08/05/2026
• Moderation: accepted
• Entry: VDB-386256
• CPE: ready
• CWE: CWE-20 (confirmed)
• CVSS: 5.5 (VulDB)
• EPSS: 0.00000
• KEV: no
• Activities: low

Sources

• MITRE: https://www.cve.org/CVERecord?id=CVE-2026-70596
• NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-70596
• CVE Details: https://www.cvedetails.com/cve/CVE-2026-70596/