CVE-2026-103283: Insufficient Session Expiration in TryGhost Ghost
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.
AI Analysis
Technical Summary
CVE-2026-103283 describes a session management vulnerability in TryGhost's Ghost software versions >=6.20.0 and <6.57.1. Authenticated staff users can bypass two-factor authentication and log in as any other staff user by exploiting insufficient session expiration controls. This allows attackers with valid staff credentials to impersonate other staff members and access administrative functions without proper authorization.
Potential Impact
An attacker with valid staff credentials can bypass two-factor authentication and impersonate other staff users, gaining unauthorized administrative access. This elevates the risk of privilege escalation and potential misuse of administrative capabilities within the affected Ghost installations.
Mitigation Recommendations
A fix is available in Ghost version 6.57.1 and later. Users should upgrade to version 6.57.1 or newer to remediate this vulnerability.
CVE-2026-103283: Insufficient Session Expiration in TryGhost Ghost
Description
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.
CVSS v4.0
Score 8.6high
Affected software
TryGhost
Ghost
pkg:github/tryghost/GhostRun on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-103283 describes a session management vulnerability in TryGhost's Ghost software versions >=6.20.0 and <6.57.1. Authenticated staff users can bypass two-factor authentication and log in as any other staff user by exploiting insufficient session expiration controls. This allows attackers with valid staff credentials to impersonate other staff members and access administrative functions without proper authorization.
Potential Impact
An attacker with valid staff credentials can bypass two-factor authentication and impersonate other staff users, gaining unauthorized administrative access. This elevates the risk of privilege escalation and potential misuse of administrative capabilities within the affected Ghost installations.
Mitigation Recommendations
A fix is available in Ghost version 6.57.1 and later. Users should upgrade to version 6.57.1 or newer to remediate this vulnerability.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- VulnCheck
- Date Reserved
- 2026-09-30T10:59:26.443Z
- Cvss Version
- 4.0
- State
- PUBLISHED
Threat ID: 6abe7495a43b0b3b89bd1d0f
Added to database: 10/01/2026, 14:56:21 UTC
Last enriched: 10/01/2026, 15:23:41 UTC
Last updated: 10/01/2026, 19:41:32 UTC
Views: 7
Community Reviews
0 reviewsCrowdsource mitigation strategies, share intel context, and vote on the most helpful responses. Sign in to add your voice and help keep defenders ahead.
Want to contribute mitigation steps or threat intel context? Sign in or create an account to join the community discussion.
Actions
Updates to AI analysis require Pro Console access. Upgrade inside Console → Billing.
Need more coverage?
Upgrade to Pro Console for AI refresh and higher limits.
For incident response and remediation, OffSeq services can help resolve threats faster.
Latest Threats
Check if your credentials are on the dark web
Instant breach scanning across billions of leaked records. Free tier available.