Improper access control in TryGhost Ghost
Priority MEDIUM 55CWE-284Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Security bypass
- Confidentiality · integrity · availability
- None · Low · None
- Fix status
- Fixed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA and GitHub. Impact type from CWE-284.
Summary
An authentication bypass vulnerability exists in the newsletter subscription functionality of Ghost Foundation Ghost 5.9.4. A specially-crafted HTTP request can lead to increased privileges. An attacker can send an HTTP request to trigger this vulnerability.
Why it matters now
Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.18914 97th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix Fixed ghost (npm): 5.22.7, 4.48.8
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- Poc
- 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
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| TryGhost | Ghost | 5.9.4 | — | No fix listed | CNA |
| — | ghost (npm) | 5.0.0 to before 5.22.7 | 5.22.7 | Patch available | GHSA-9gh8-wp53-ccc6 |
| — | ghost (npm) | 4.46.0 to before 4.48.8 | 4.48.8 | Patch available | GHSA-9gh8-wp53-ccc6 |
- Ghost VendorTryGhost Affected 5.9.4 Fixed in — No fix listed CNA
- ghost (npm) Vendor— Affected 5.0.0 to before 5.22.7 Fixed in 5.22.7 Patch available GHSA-9gh8-wp53-ccc6
- ghost (npm) Vendor— Affected 4.46.0 to before 4.48.8 Fixed in 4.48.8 Patch available GHSA-9gh8-wp53-ccc6
Remediation
- Fix · GHSA-9gh8-wp53-ccc6 ghost (npm) Fixed in 5.22.7 Advisory →
- Fix · GHSA-9gh8-wp53-ccc6 ghost (npm) Fixed in 4.48.8 Advisory →
Timeline
- 2026-10-02 Threatist record created from CVE-2022-41654
- 2026-10-03 Alias added: GHSA-9gh8-wp53-ccc6
References
Advisory 2
More TryGhost Ghost 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-2022-41654 · CVE Program
- CVE-2022-41654 · NVD
- FIRST EPSS
- GHSA-9gh8-wp53-ccc6 · 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