CVE-2023-31133

Ghost vulnerable to disclosure of private API fields

HIGH
7.5
CVSS Score
Published: May 8, 2023 at 08:56 PM UTC
Updated: June 17, 2026 at 05:56 AM UTC
2 products affected across 2 vendorsGhostGhost

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Severity
HIGH7.5
Exploit prediction
EPSS 46%
SSVC
No known exploit

Description

Ghost is an app for new-media creators with tools to build a website, publish content, send newsletters, and offer paid subscriptions to members. Prior to version 5.46.1, due to a lack of validation when filtering on the public API endpoints, it is possible to reveal private fields via a brute force attack. Ghost(Pro) has already been patched. Maintainers can find no evidence that the issue was exploited on Ghost(Pro) prior to the patch being added. Self-hosters are impacted if running Ghost a version below v5.46.1. v5.46.1 contains a fix for this issue. As a workaround, add a block for requests to `/ghost/api/content/*` where the `filter` query parameter contains `password` or `email`.

Affected

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

Ghost· Ghostwordpress-plugin
95%
v < 5.46.1
Affected range stops below 5.46.1, so it looks safe — our inference, not a vendor statement
v < 5.46.1
Affected range stops below 5.46.1, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

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

SSVC — Action Prioritization

SSVCNo known exploitAutomatablePartial impact

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

CVSS

7.5HIGHGitHub_M
Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
NONE
Availability
NONE
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-200NVD-CWE-noinfo

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