{"id":"CVE-2021-39192","aliases":["BIT-ghost-2021-39192","GHSA-j5c2-hm46-wp5c"],"url":"https://o3.security/vulnerability/CVE-2021-39192","summary":"Privilege escalation: all users can access Admin-level API keys","details":"### Impact\nAn error in the implementation of the limits service in 4.0.0 allows all authenticated users (including contributors) to view admin-level API keys via the integrations API endpoint, leading to a privilege escalation vulnerability.\n\nGhost(Pro) has already been patched. Self-hosters are impacted if running Ghost a version between 4.0.0 and 4.9.4. Immediate action should be taken to secure your site - see patches & workarounds below.\n\nIt is highly recommended to regenerate all API keys after patching or applying the workaround below.\n\n### Patches\nFixed in 4.10.0, all 4.x sites should upgrade as soon as possible.\n\n### Workarounds\n- Disable all non-Administrator accounts to prevent API access.\n\n### For more information\nIf you have any questions or comments about this advisory:\n* email us at security@ghost.org\n\n---\nCredits: Aden Yap Chuen Zhen, BAE Systems Applied Intelligence (Malaysia)","published":"2021-09-03T15:15:09.410Z","modified":"2026-08-07T19:46:49.309350Z","cvss":{"score":7.2,"severity":"HIGH","vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H"},"epss":null,"cisaKev":null,"exploitsKnown":null,"affectedPackages":[{"ecosystem":"npm","name":"ghost","fixedVersion":"4.10.0"}],"fix":null,"references":[{"type":"ADVISORY","url":"https://github.com/TryGhost/Ghost/releases/tag/v4.10.0"},{"type":"ADVISORY","url":"https://github.com/TryGhost/Ghost/security/advisories/GHSA-j5c2-hm46-wp5c"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2021-39192"},{"type":"PACKAGE","url":"https://github.com/TryGhost/Ghost"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-08-07T19:46:49.309350Z"}}