CVE-2026-103289
Received Received - Intake

Authenticated Comment Data Disclosure in Ghost CMS

Publication date: 2026-10-01

Last updated on: 2026-10-01

Assigner: VulnCheck

Description
Ghost from 5.9.0 before 6.44.1 contains an input validation issue in the comments feature that allows authenticated members to access comments they are not authorized to view, resulting in disclosure of restricted comment data.

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Meta Information

Published
2026-10-01
Last Modified
2026-10-01
Generated
2026-10-01
AI Q&A
2026-10-01
EPSS Evaluated
N/A
NVD
CVE-2026-103289
EUVD
EUVD-2026-90682

Affected Vendors & Products

Showing 2 associated CPEs
Vendor Product Version / Range
ghost ghost to 6.44.1 (exc)
tryghost ghost From 5.9.0 (inc) to 6.44.1 (exc)

Helpful Resources

Exploitability

CWE
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KEV
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CWE ID Description
CWE-943 The product generates a query intended to access or manipulate data in a data store such as a database, but it does not neutralize or incorrectly neutralizes special elements that can modify the intended logic of the query.

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Executive Summary

This vulnerability is an authorization bypass in Ghost's comments feature. It affects versions 5.9.0 to 6.44.1 and allows authenticated members to view comments they are not authorized to access due to improper input validation. The flaw enables disclosure of restricted comment data.

Detection Guidance

To detect this vulnerability, check your Ghost installation version. If it is between 5.9.0 and 6.44.0, it is vulnerable. Run 'ghost version' in your Ghost CLI or check the version in your Docker container. Additionally, review access logs for unauthorized comment access attempts.

Impact Analysis

An attacker with member access could read private comments, potentially exposing sensitive information. This could lead to data leaks, privacy violations, or unauthorized access to restricted discussions within the Ghost platform.

Compliance Impact

This vulnerability could lead to unauthorized access to personal or sensitive data in comments, violating GDPR's data protection principles or HIPAA's confidentiality requirements. Organizations may face compliance breaches and legal penalties if exploited.

Mitigation Strategies

Immediately update Ghost to version 6.44.1 or later using Ghost-CLI or Docker. For self-hosted users, follow the update instructions provided in the official Ghost documentation. Ensure no unauthorized access has occurred by reviewing comment access logs.

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