Ghost 6.20.0 before 6.57.1 Authentication Bypass via Session Handling
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Attack requirements
- None
- Impact type
- Security bypass
- Confidentiality · integrity · availability
- High · High · None
- Fix status
- Fixed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-613.
Summary
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.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Total
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
Remediation
- Fix · CNA Ghost (TryGhost) Fixed in 6.57.1
Fixed in the same release
Records fixed by the same vendor advisory or release, as the CNA lists them.
- Release ·
TryGhost Ghost 6.57.1
3 records Highest priority Priority LOW 3 LOW
Other records, highest priority first
- TI-2026-65660 Ghost 5.19.0 before 6.57.1 Cross-Site Request ForgeryPriority LOW 23
- TI-2026-65659 Ghost 5.125.1 before 6.57.1 Information Disclosure via FeedbackPriority LOW 23
Timeline
- 2026-10-02 Threatist record created from CVE-2026-103283
- 2026-10-03 Alias added: GHSA-xwp3-2mhg-j9rp
- 2026-10-06 CISA SSVC decision points changed
References
More TryGhost vulnerabilities
- TI-2026-21459 Ghost has a SQL Injection in its Content API CVSS 3.1CRITICAL 9.4
- TI-2022-10277 An arbitrary file upload vulnerability in the file upload module of Ghost v4.39.0 allows… CVSS 3.1CRITICAL 9.8
- TI-2024-22785 Ghost through 5.85.1 allows remote attackers to bypass an authentication rate-limit… CVSS 3.1CRITICAL 9.1
- TI-2023-14843 Ghost vulnerable to disclosure of private API fields CVSS 3.1HIGH 7.5
- TI-2025-09049 Ghost 6.0.6 - SSRF via oEmbed Bookmark CVSS 4.0MEDIUM 6.1
- TI-2023-20918 Arbitrary file read via symlinks in Ghost CVSS 3.1MEDIUM 6.5
Sources
- CVE-2026-103283 · CVE Program
- CVE-2026-103283 · NVD
- FIRST EPSS
- GHSA-xwp3-2mhg-j9rp · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences