{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-103283","assignerOrgId":"83251b91-4cc7-4094-a5c7-464a1b83ea10","state":"PUBLISHED","assignerShortName":"VulnCheck","dateReserved":"2026-09-30T10:59:26.443Z","datePublished":"2026-10-01T10:42:18.910Z","dateUpdated":"2026-10-06T01:41:33.164Z"},"containers":{"cna":{"providerMetadata":{"orgId":"83251b91-4cc7-4094-a5c7-464a1b83ea10","shortName":"VulnCheck","dateUpdated":"2026-10-01T10:42:18.910Z"},"datePublic":"2026-08-13T00:00:00.000Z","title":"Ghost 6.20.0 before 6.57.1 Authentication Bypass via Session Handling","descriptions":[{"lang":"en","value":"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."}],"problemTypes":[{"descriptions":[{"lang":"en","description":"Insufficient Session Expiration","cweId":"CWE-613","type":"CWE"}]}],"affected":[{"vendor":"TryGhost","product":"Ghost","defaultStatus":"unaffected","packageURL":"pkg:npm/ghost","versions":[{"version":"6.20.0","status":"affected","versionType":"semver","lessThan":"6.57.1"}]}],"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:a:ghost:ghost:*:*:*:*:*:*:*:*","versionStartIncluding":"6.20.0","versionEndExcluding":"6.57.1"}]}]}],"metrics":[{"format":"CVSS","cvssV4_0":{"version":"4.0","vectorString":"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","attackVector":"NETWORK","attackComplexity":"LOW","attackRequirements":"NONE","privilegesRequired":"LOW","userInteraction":"NONE","vulnConfidentialityImpact":"HIGH","vulnIntegrityImpact":"HIGH","vulnAvailabilityImpact":"NONE","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","subAvailabilityImpact":"NONE","baseScore":8.6,"baseSeverity":"HIGH"}},{"format":"CVSS","cvssV3_1":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"LOW","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"HIGH","integrityImpact":"HIGH","availabilityImpact":"NONE","baseScore":8.1,"baseSeverity":"HIGH"}}],"references":[{"url":"https://github.com/TryGhost/Ghost/security/advisories/GHSA-q55r-w7fh-rmh6","tags":["vendor-advisory"],"name":"GitHub Security Advisory (GHSA-q55r-w7fh-rmh6)"},{"name":"VulnCheck Advisory: Ghost 6.20.0 before 6.57.1 Authentication Bypass via Session Handling","tags":["third-party-advisory"],"url":"https://www.vulncheck.com/advisories/ghost-6.20.0-before-6.57.1-authentication-bypass-via-session-handling"}],"credits":[{"lang":"en","value":"jaeyoon-kim-dev","type":"reporter"},{"lang":"en","value":"doanmanhducz","type":"reporter"}],"x_generator":{"engine":"vulncheck-endgame"}},"adp":[{"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-10-06T01:41:23.844330Z","id":"CVE-2026-103283","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"total"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"title":"CISA ADP Vulnrichment","providerMetadata":{"orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP","dateUpdated":"2026-10-06T01:41:33.164Z"}}]}}