CVE-2021-39192: ghost
Vulnerability summary
CVE-2021-39192 is a high (CVSS 7.2) vulnerability in ghost. EPSS estimates a 1.02% chance of exploitation in the next 30 days, higher than 62.8% of scored vulnerabilities.
Timeline
- 03-09-2021PublishedVulnerability first disclosed.
- 04-08-2024Last modifiedVulnerability information updated.
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 metrics
4 scores · 3 sources · 2 versions- CVE.orgCNA6.5MediumCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:NDiffers
- OSV · NpmEcosystem advisory · calculated6.5MediumCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:NDiffers
EPSS trend
Probability
1.02%
Chance of exploitation in the next 30 days
Percentile
63%
Versus all other CVEs
30-day change
0.00 pp
From 1.02% on 20-09-2026
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root cause- CWE-200Exposure of Sensitive Information to an Unauthorized ActorThe product exposes sensitive information to an actor that is not explicitly authorized to have access to that information.
- CWE-269Improper Privilege ManagementThe product does not properly assign, modify, track, or check privileges for an actor, creating an unintended sphere of control for that actor.
Affected systems
Ghost1 product
- ghost≥ 4.0.0, < 4.10.0
Npm1 product
- ghost≥ 4.0.0, < 4.10.0
Tryghost1 product
- ghost≥ 4.0.0, < 4.10.0
3 vendors · 3 products
References
4 links- github.com/TryGhost/Ghost/security/advisories/GHSA-j5c2-hm46-wp5cX Refsource CONFIRMWEBThird Party Advisory
- github.com/TryGhost/GhostPACKAGE