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

2023-08-1517:25:16

CWE-22

GitHub_M

www.cve.org

ghost

symlink vulnerability

fix

CVSS3

4.9

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

HIGH

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

NONE

Availability Impact

NONE

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

EPSS

0.001

Percentile

30.2%

JSON

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.

CNA Affected

[
  {
    "vendor": "TryGhost",
    "product": "Ghost",
    "versions": [
      {
        "version": "< 5.59.1",
        "status": "affected"
      }
    ]
  }
]