CVE-2026-103291
Ghost 3.20.2 before 6.51.0 SSRF via image-size fetch
- State
- Published
- Severity
- 5.3 Medium
- Published
- Oct 1, 2026
- Updated
- Oct 6, 2026
- Reserved
- Sep 30, 2026
Description
Ghost versions from 3.20.2 before 6.51.0 contain a server-side request forgery vulnerability in image dimension refetching that allows authenticated staff users to trigger outbound HTTP requests to arbitrary URLs. Attackers can point image cards at attacker-controlled hosts or internal network endpoints to access metadata services and internal resources unavailable from the public internet.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 5.3 Medium | CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:N/SC:L/SI:L/SA:N | VulnCheck |
| 3.1 | 6.4 Medium | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N | VulnCheck |
Weaknesses
- CWE-918 Server-Side Request Forgery (SSRF)
Affected Products
| Product | Versions |
|---|---|
GhostTryGhost |
|
References
- GitHub Security Advisory (GHSA-rrq6-9r3c-7w26)vendor-advisory
- VulnCheck Advisory: Ghost 3.20.2 before 6.51.0 SSRF via image-size fetchthird-party-advisory
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