CVE-2026-53949

Ghost Content API filter bypass reveals private fields

Published Jun 24, 2026 CVSS 3.1 · 5.3 Medium EPSS < 1% KEV · Not listed
Description
Ghost is a Node.js content management system. From 5.46.1 until 6.21.2, the validation applied to filters on the public API endpoints could be partially bypassed, making it possible to reveal private fields via a brute force attack. If SQLite was used as the database password hashes were fully accessible. If MySQL was used as the database the password hashes' case (uppercase / lowercase) would have been lost, which would likely have rendered a further brute force attack on the discovered hashes fruitless. This vulnerability is fixed in 6.21.2.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source ID Title
Github GHSA Github GHSA GHSA-jx35-x7fj-vgpr Ghost Content API filter bypass reveals private fields
History
Type Values Removed Values Added
First Time appeared Ghost
Ghost ghost
Vendors & Products Ghost
Ghost ghost
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
Description Ghost is a Node.js content management system. From 5.46.1 until 6.21.2, the validation applied to filters on the public API endpoints could be partially bypassed, making it possible to reveal private fields via a brute force attack. If SQLite was used as the database password hashes were fully accessible. If MySQL was used as the database the password hashes' case (uppercase / lowercase) would have been lost, which would likely have rendered a further brute force attack on the discovered hashes fruitless. This vulnerability is fixed in 6.21.2.
Title Ghost Content API filter bypass reveals private fields
Weaknesses CWE-200
CWE-693
References
Metrics cvssV3_1

{'score': 5.3, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
GitHub_M
Published
Updated
Jun 24, 2026, 6:55 PM
Reserved
Jun 11, 2026, 3:50 PM
Status
Deferred
Published
Jun 24, 2026, 7:17 PM
Modified
Oct 25, 2026, 10:10 PM