Vulnerability · Published Oct 1, 2026 · Assigned by VulnCheck
CVE-2026-103286Ghost 2.21.0 before 6.56.0 Privilege Escalation via Notifications
High 7.3
In plain English
A high-severity security flaw in Ghost from TryGhost. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 8% of all known vulnerabilities).
Severity (CVSS 3.1)7.3High
Exploit odds (30 days)0.2%top 91.9% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official 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.
Affected products (as reported)
Weakness: CWE-266 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:N
References
- GitHub Security Advisory (GHSA-pv24-pfvg-vr83) vendor-advisory
- VulnCheck Advisory: Ghost 2.21.0 before 6.56.0 Privilege Escalation via Notifications third-party-advisory