{"id":"CVE-2026-103283","summary":"Ghost 6.20.0 before 6.57.1 Authentication Bypass via Session Handling","details":"Ghost versions 6.20.0 before 6.57.1 contain a session handling vulnerability that allows authenticated staff users to log in as any other staff user with only the password, bypassing two-factor authentication. Attackers with valid staff credentials can exploit improper session management to impersonate other staff members and gain unauthorized access to administrative functions.","aliases":["GHSA-q55r-w7fh-rmh6"],"modified":"2026-10-03T03:45:28.597299105Z","published":"2026-10-01T10:42:18.910Z","database_specific":{"cwe_ids":["CWE-613"],"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/103xxx/CVE-2026-103283.json","cna_assigner":"VulnCheck"},"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/103xxx/CVE-2026-103283.json"},{"type":"ADVISORY","url":"https://github.com/TryGhost/Ghost/security/advisories/GHSA-q55r-w7fh-rmh6"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-103283"},{"type":"ADVISORY","url":"https://www.vulncheck.com/advisories/ghost-6.20.0-before-6.57.1-authentication-bypass-via-session-handling"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/tryghost/ghost","events":[{"introduced":"9da77c9302b617707699b3e8fb69c586648a6580"},{"fixed":"33d716a034a25824e9bd2fce8e2e394122421b41"}],"database_specific":{"source":["AFFECTED_FIELD","DESCRIPTION"],"extracted_events":[{"introduced":"6.20.0"},{"fixed":"6.57.1"}]}}],"versions":["v6.57.0","v6.56.0","v6.55.0","v6.54.1","v6.54.0","v6.53.0","v6.52.1","v6.52.0","v6.51.0","v6.50.0","v6.49.0","v6.48.0","v6.47.0","v6.46.0","v6.45.0","v6.44.1","v6.44.0","v6.43.1","v6.43.0","v6.42.0","v6.41.1","v6.41.0","v6.40.0","v6.39.0","v6.38.0","v6.37.1","v6.37.0","v6.36.0","v6.35.0","v6.34.0","v6.33.0","v6.32.0","v6.31.0","v6.30.0","v6.29.1","v6.29.0","v6.28.0","v6.27.0","v6.26.0","v6.25.1","v6.25.0","v6.24.0","v6.23.0","v6.22.1","v6.22.0","v6.21.0","v6.21.2","v6.21.1","v6.20.1","v6.20.0"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-103283.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V4","score":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N"}]}