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CVE-2023-40028

MediumCVSS 4.9 / 10
Published Aug 15, 2023·Last modified Apr 10, 2026
Affected Components(0)

No affected components available

Description

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.

Risk Scores
Base Score
4.9

The vulnerability can be exploited over the network without needing physical access. It is easy for an attacker to exploit this vulnerability. An attacker needs high-level or administrative privileges. No user interaction is needed for the attacker to exploit this vulnerability. The impact is confined to the system where the vulnerability exists. There is a high impact on the confidentiality of the information.

Threat Intelligence
4.7

Exploitation attempts have been detected. Elevated vigilance and prompt remediation are advised.

EPSS
57.56%

The exploit probability is high. The vulnerability is very likely to be exploited in the next 30 days.

Exploit
Proof of Concept

A proof of concept is available for this vulnerability (11 exploits found).

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