Ghost Open Source CMS Vulnerability Allows Authenticated Users to Read Arbitrary Files

CVE-2023-40028

4.9MEDIUM

Key Information

Vendor
Tryghost
Status
Ghost
Vendor
CVE Published:
15 August 2023

Badges

👾 Exploit Exists🔴 Public PoC

Summary

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.

Affected Version(s)

Ghost = < 5.59.1

Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

CVE-2023-40028-Ghost-Arbitrary-File-Read
Created by monke443

CVE-2023-40028
Created by BBSynapse

Ghost-5.58-Arbitrary-File-Read-CVE-2023-40028
Created by 0xDTC

Refferences

https://github.com/TryGhost/Ghost/security/advisories/GHS...
x_refsource_CONFIRM
https://github.com/TryGhost/Ghost/commit/690fbf3f7302ff3f...
x_refsource_MISC

CVSS V3.1

Score:
4.9
Severity:
MEDIUM
Confidentiality:
High
Integrity:
None
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
High
User Interaction:
None
Scope:
Unchanged

Timeline

  • 🔴

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Collectors

NVD DatabaseMitre Database3 Proof of Concept(s)
.