MajorCritical vulnerability

CVE-2026-103278 (CVSS 8.5)

NVD · officialPublished Oct 1, 2026Risk 37/100

Ghost versions 5.8.0 before 6.34.0 contain an input validation vulnerability in the admin iframe that allows attackers to take over staff user accounts. Attackers with content publishing privileges can craft malicious pages that, when visited by active staff users, enable account takeover through improper input validation.

Technical details

CVSS

8.5

AV:NetworkAC:LowPR:LowUI:Passive

Evidence and sources

This record is attributed to NVD. Exploitation status and remediation guidance are kept separate from the vulnerability's technical severity.

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