Servers and applications
GHSA-q58f-57cg-xfw5
Private Site Access Code Brute Force via Forged Session Cookies
- Severity
- Medium 5.3
- Published
- 13 Nov 2026
- Last changed
- 13 Nov 2026
- Added to UpHeron
- 13 Nov 2026
- Fixed in
- 6.77.0
- Attack
- Over the network · No login needed · No user action needed
- Attacker can
- Read some data
- CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N- Sources
- Project advisories (GitHub)
Description
On sites in private mode, an unauthenticated visitor could guess the site's access code without being limited by Ghost's brute-force protection. Access codes generated by Ghost could be recovered in a short time.
Recovering the access code gives the same access as being told it: the visitor can read the private site and its member comments. It does not grant staff or member access.
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.
Workarounds
Use a long, random access code (Settings → General → Make this site private) so that guessing is impractical.
Affected software
| Software | Affected versions |
|---|---|
GhostServers and applications · github:tryghost/ghost |
|
References
- GitHub Advisory Database https://github.com/advisories/GHSA-q58f-57cg-xfw5
- github.com https://github.com/TryGhost/Ghost/security/advisories/GHSA-q58f-57cg-xfw5