Ghost editors can assign roles they lack permission to assign
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Privilege escalation, Security bypass
- Confidentiality · integrity · availability
- None · Low · None
- Fix status
- Fixed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA and GitHub. Impact type from CWE-269 and CWE-863.
Summary
Ghost, a Node.js content management system, is affected from 0.5.0 before 6.64.0. Staff users with the Editor or Super Editor role can assign their own role to Author and Contributor users, although they lack permission to assign that role. An authenticated attacker with a low-privilege staff account can change roles they should not control, which is classified as CWE-863.
Written with Claude Haiku 5.5 from the sources below · 2026-10-29
Description from the CNA
Ghost is a Node.js content management system. From 0.5.0 until 6.64.0, staff users with the Editor or Super Editor role were able to assign their own role to Author and Contributor users, despite not having permission to assign that role. This issue is fixed in version 6.64.0.
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 | 0.5.0 to before 6.64.0 | 6.64.0 | Patch available | CNA |
| — | ghost (npm) | 0.5.0 to before 6.64.0 | 6.64.0 | Patch available | GHSA-4pvx-fwjj-8gpc |
- Ghost VendorTryGhost Affected 0.5.0 to before 6.64.0 Fixed in 6.64.0 Patch available CNA
- ghost (npm) Vendor— Affected 0.5.0 to before 6.64.0 Fixed in 6.64.0 Patch available GHSA-4pvx-fwjj-8gpc
Remediation
Upgrade the npm package ghost to version 6.64.0, which fixes this issue.
Written with Claude Haiku 5.5 from the sources below · 2026-10-29
- Fix · CNA Ghost (TryGhost) Fixed in 6.64.0
- Fix · GHSA-4pvx-fwjj-8gpc ghost (npm) Fixed in 6.64.0 Advisory →
Timeline
- 2026-10-05 Threatist record created from CVE-2026-105678
- 2026-10-07 Alias added: GHSA-4pvx-fwjj-8gpc
- 2026-10-07 Fix available: npm/[email protected] · GHSA-4pvx-fwjj-8gpc
- 2026-10-07 CVSS score added · GHSA-4pvx-fwjj-8gpc
- 2026-10-07 Weakness changed · GHSA-4pvx-fwjj-8gpc
- 2026-10-07 7 new references · GHSA-4pvx-fwjj-8gpc
- 2026-10-07 CISA SSVC decision points changed
References
Other 6
- https://github.com/TryGhost/Ghost/security/advisories/GHSA-4pvx-fwjj-8gpc
- https://github.com/TryGhost/Ghost/issues/30764
- https://github.com/TryGhost/Ghost/commit/99c5642b9bb481df4811a004a6f19d6143ed9aaf
- https://github.com/TryGhost/Ghost/releases/tag/v6.64.0
- https://github.com/TryGhost/Ghost/pull/30764
- https://github.com/TryGhost/Ghost
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-2026-105678 · CVE Program
- CVE-2026-105678 · NVD
- FIRST EPSS
- GHSA-4pvx-fwjj-8gpc · 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