Ghost 5.9.0 before 6.44.1 Authorization Bypass via Comment Like
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Attack requirements
- None
- Impact type
- Security bypass
- Confidentiality · integrity · availability
- None · High · None
- Fix status
- Fixed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA and GitHub. Impact type from CWE-639.
Summary
Ghost, an open-source publishing platform, contains an input validation flaw in its comment like feature in versions from 5.9.0 before 6.44.1. An authenticated member can delete comment likes or dislikes belonging to other users that they are not authorized to delete, resulting in an authorization bypass and unauthorized modification of comment engagement data.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| TryGhost | Ghost | 5.9.0 to before 6.44.1 | 6.44.1 | Patch available | CNA |
| — | ghost (npm) | 5.9.0 to before 6.44.1 | 6.44.1 | Patch available | GHSA-qrh6-cwg3-343x |
- Ghost VendorTryGhost Affected 5.9.0 to before 6.44.1 Fixed in 6.44.1 Patch available CNA
- ghost (npm) Vendor— Affected 5.9.0 to before 6.44.1 Fixed in 6.44.1 Patch available GHSA-qrh6-cwg3-343x
Remediation
- Fix · CNA Ghost (TryGhost) Fixed in 6.44.1
- Fix · GHSA-qrh6-cwg3-343x ghost (npm) Fixed in 6.44.1 Advisory →
Fixed in the same release
Records fixed by the same vendor advisory or release, as the CNA lists them.
- Release ·
TryGhost Ghost 6.44.1
2 records Highest priority Priority LOW 2 LOW
Other records, highest priority first
- TI-2026-65664 Ghost 5.9.0 before 6.44.1 Authorization Bypass via CommentsPriority LOW 31
Timeline
- 2026-10-02 Threatist record created from CVE-2026-103288
- 2026-10-03 Alias added: GHSA-wj4w-mc24-pcfm
- 2026-10-27 Alias added: GHSA-qrh6-cwg3-343x
References
Advisory 2
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-2026-103288 · CVE Program
- CVE-2026-103288 · NVD
- FIRST EPSS
- GHSA-qrh6-cwg3-343x · GitHub Advisory Database · CC BY 4.0
- GHSA-wj4w-mc24-pcfm · 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