Ghost is a Node.js content management system. From 1.20.1 until 6.54.1, an Administrator-level user could remotely overwrite certain files on the filesystem through the database backup filename, leading to integrity and availability issues. The database export endpoint failed to reject path separators in the caller-supplied filename.
This issue is fixed in version 6.54.1.
Attack Parameters
Attack Vector
Network
Can be exploited remotely
Attack Complexity
Low
Easy to exploit
Privileges Required
High
Admin privileges needed
User Interaction
None
No user interaction needed
Impact Assessment
Confidentiality
None
No data leak
Integrity
Low
Partial data modification
Availability
Low
Partial disruption
CVSS Vector v3.1
Weakness Type (CWE)
References 3
https://github.com/TryGhost/Ghost/commit/f466c300191a609ed36c8d7c5d1e33ccd44078…
security-advisories@github.com
https://github.com/TryGhost/Ghost/releases/tag/v6.54.1
security-advisories@github.com
https://github.com/TryGhost/Ghost/security/advisories/GHSA-cj62-hvv2-2q5h
security-advisories@github.com