CVE-2026-103286
Ghost 2.21.0 before 6.56.0 Privilege Escalation via Notifications
- State
- Published
- Severity
- 8.5 High
- Published
- Oct 1, 2026
- Updated
- Oct 1, 2026
- Reserved
- Sep 30, 2026
Description
Ghost versions from 2.21.0 before 6.56.0 contain a privilege escalation vulnerability in the notifications system that allows low-privilege staff users to escalate to higher-privilege staff roles. Attackers with low-privilege staff access can exploit the notifications system to gain elevated privileges without proper authorization checks.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 8.5 High | CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N | VulnCheck |
| 3.1 | 7.3 High | CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:N | VulnCheck |
Weaknesses
- CWE-266 Incorrect Privilege Assignment
Affected Products
| Product | Versions |
|---|---|
GhostTryGhost |
|
References
- GitHub Security Advisory (GHSA-pv24-pfvg-vr83)vendor-advisory
- VulnCheck Advisory: Ghost 2.21.0 before 6.56.0 Privilege Escalation via Notificationsthird-party-advisory
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