GHSA-6q6j-f24j-p477: Input Validation
Impact
An input validation issue allowed members to access comments they were not authorized to access.
Vulnerable versions
This vulnerability is present in Ghost from v5.9.0 up to v6.44.1.
Patches
v6.44.1 contains a fix for this issue.
How to update
For self-hosters using Docker, find Docker's official Ghost image here. Updating a Docker-based Ghost instance is documented here.
If your Ghost is a Ghost-CLI install see our documentation on updating it to the latest version here.
References
Ghost thanks Himanshu Anand (@anandhimanshu) for disclosing this vulnerability responsibly.
For more information
If you have any questions or comments about this advisory, email us at security@ghost.org.
Affected Software
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade
npm/ghostto a version that resolves this vulnerability.Fixed in 6.44.1 - Upgrade
Upgrade
Ghostto a version that resolves this vulnerability.Fixed in 6.44.1
Event History
Frequently Asked Questions
Which deployments are affected?
Self-hosted Ghost deployments running versions from 5.9.0 through 6.44.1 are affected. The advisory identifies both Docker-based and Ghost-CLI installations as supported update paths.
What access does an attacker need?
An attacker needs member-level privileges. The issue allowed members to access comments they were not authorized to view.
What is the remediation?
Update Ghost to version 6.44.1, which contains the fix. For Docker deployments, update the official Ghost image; for Ghost-CLI installations, use the documented Ghost update process.