CVE-2023-40028 MEDIUM

CVE-2023-40028: Arbitrary file read via symlinks in Ghost

Vendor Tryghost
Product Ghost
Weakness CWE-22 · Path traversal
Published August 15, 2023
Last update October 2, 2024

CVSS base score

4.9/10
Attack vector Network
Attack complexity Low
Privileges required High
User interaction None
Confidentiality High
Integrity None

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N

What the vulnerability does

01Description

Ghost is an open source content management system. Versions prior to 5.59.1 are subject to a vulnerability which allows authenticated users to upload files that are symlinks. This can be exploited to perform an arbitrary file read of any file on the host operating system. Site administrators can check for exploitation of this issue by looking for unknown symlinks within Ghost's `content/` folder. Version 5.59.1 contains a fix for this issue. All users are advised to upgrade. There are no known workarounds for this vulnerability.

Key dates

02Disclosure timeline

August 15, 2023 CVE published
October 2, 2024 Record updated