{"id":"BIT-ghost-2026-103286","summary":"Ghost 2.21.0 before 6.56.0 Privilege Escalation via Notifications","details":"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.","aliases":["CVE-2026-103286","GHSA-pv24-pfvg-vr83"],"modified":"2026-10-09T12:10:29.616733260Z","published":"2026-10-09T10:45:05.579Z","database_specific":{"severity":"High","cpes":["cpe:2.3:a:ghost:ghost:*:*:*:*:*:node.js:*:*"]},"references":[{"type":"WEB","url":"https://github.com/TryGhost/Ghost/security/advisories/GHSA-pv24-pfvg-vr83"},{"type":"WEB","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-103286"},{"type":"WEB","url":"https://www.vulncheck.com/advisories/ghost-2.21.0-before-6.56.0-privilege-escalation-via-notifications"}],"affected":[{"package":{"name":"ghost","ecosystem":"Bitnami","purl":"pkg:bitnami/ghost"},"ranges":[{"type":"SEMVER","events":[{"introduced":"2.21.0"},{"fixed":"6.56.0"}]}],"database_specific":{"source":"https://github.com/bitnami/vulndb/tree/main/data/ghost/BIT-ghost-2026-103286.json"},"severity":[{"type":"CVSS_V4","score":"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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X"}]}],"schema_version":"1.9.0"}