CVE-2021-39192
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.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (1.02%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
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.
- CVSS 3.1
- 7.2 HIGHCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 1.02% probability · 61th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-200, CWE-269
- Affected
- ghost/ghost
- Source
- security-advisories@github.com
References
- https://github.com/TryGhost/Ghost/releases/tag/v4.10.0Release Notes, Third Party Advisory
- https://github.com/TryGhost/Ghost/security/advisories/GHSA-j5c2-hm46-wp5cThird Party Advisory
- https://github.com/TryGhost/Ghost/releases/tag/v4.10.0Release Notes, Third Party Advisory
- https://github.com/TryGhost/Ghost/security/advisories/GHSA-j5c2-hm46-wp5cThird Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.