CVE-2026-103288

Ghost 5.9.0 before 6.44.1 Authorization Bypass via Comment Like

MEDIUM
6.5
CVSS Score
Published: October 1, 2026 at 10:42 AM UTC
Updated: October 1, 2026 at 03:06 PM UTC
2 products affected across 2 vendorsGhostGhost

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Severity
MEDIUM6.5
Exploit prediction
EPSS 0.2%
SSVC
No known exploit

Description

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.

Affected

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

Ghost· Ghostwordpress-plugin
95%
5.9.0 ≤ v < 6.44.1
Affected range stops below 6.44.1, so it looks safe — our inference, not a vendor statement
5.9.0 ≤ v < 6.44.15.9.0
Vendor states this is fixed in 6.44.1 (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

6.5MEDIUMVulnCheck
Attack Vector
NETWORK
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
HIGH
Availability
NONE
Vector?

Quick Info

StatusDEFERRED
CWE
CWE-639

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