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CVE-2026-103283

Ghost 6.20.0 before 6.57.1 Authentication Bypass via Session Handling

CVSS 4.0 8.6 HIGHCVSS 3.1 8.1 HIGHCheck source for fixed versionsKEV status unknown

Original advisory

Historical advisory recorded 23 Oct 2026 15:48:27 UTC. Read the latest advisory.

cve-program · CVE-2026-103283

Published

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.

Read the publisher's advisory

Affected versions, risk and source history

cve-program · CVE-2026-103283

Published

Ghost

Vendor product

Publisher's version information

Shown as published. These rules are not interpreted as NuGet package version ranges.

{
                    "vendor": "TryGhost",
                    "product": "Ghost",
                    "defaultStatus": "unaffected",
                    "packageURL": "pkg:npm/ghost",
                    "versions": [
                        {
                            "version": "6.20.0",
                            "status": "affected",
                            "versionType": "semver",
                            "lessThan": "6.57.1"
                        }
                    ]
                }

Original source record · Cite this exact observation · Complete original publisher JSON