CVE-2026-103273
Ghost 4.3.0 before 6.58.0 Incorrect Authorization via Staff Token
CVSS Score
4.3
EPSS Score
0.0%
EPSS Percentile
0th
Ghost versions 4.3.0 before 6.58.0 contain an authentication bypass vulnerability where lower-privilege staff users can use staff tokens to bypass post editing restrictions. Attackers with staff credentials can leverage tokens to edit posts beyond their assigned privilege level.
| CWE | CWE-863 |
| Vendor | tryghost |
| Product | ghost |
| Published | Oct 1, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
Low
Availability
None
Affected Versions
TryGhost / Ghost
4.3.0 < 6.58.0