VULNERABILITY INTELLIGENCE

CVE-2021-39192

CVSS score6.5 MEDIUM
EPSS probability1.02%
CISA KEVNot currently listed
Published2021-09-03
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N

Description

Ghost is a Node.js content management system. An error in the implementation of the limits service between versions 4.0.0 and 4.9.4 allows all authenticated users (including contributors) to view admin-level API keys via the integrations API endpoint, leading to a privilege escalation vulnerability. This issue is patched in Ghost version 4.10.0. As a workaround, disable all non-Administrator accounts to prevent API access. It is highly recommended to regenerate all API keys after patching or applying the workaround.

Weakness classification

  • security-advisories@github.com: CWE-200
  • nvd@nist.gov: CWE-269

Primary references