CVE-2026-103291

Ghost 3.20.2 before 6.51.0 SSRF via image-size fetch

MEDIUM
6.4
CVSS Score
Published: October 1, 2026 at 10:42 AM UTC
Updated: October 6, 2026 at 02:17 AM UTC
2 products affected across 2 vendorsGhostGhost

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Severity
MEDIUM6.4
Exploit prediction
EPSS 0.1%
SSVC
No known exploit

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Ghost· Ghostwordpress-plugin
95%
3.20.2 ≤ v < 6.51.0
Affected range stops below 6.51.0, so it looks safe — our inference, not a vendor statement
3.20.2 ≤ v < 6.51.03.20.2
Vendor states this is fixed in 6.51.0 (unaffected)

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

6.4MEDIUMVulnCheck
Attack Vector
NETWORK
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
CHANGED
Confidentiality
LOW
Integrity
LOW
Availability
NONE
Vector?

Quick Info

StatusDEFERRED
CWE
CWE-918

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