Ghost Content API filter bypass reveals private fields_CVE-2026-53949

5.3 / 10

MEDIUM

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

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.

Basic Information

ID CVE-2026-53949

Source GitHub_M

Published Jun 24, 2026 at 18:05

Modified Jun 24, 2026 at 18:55

Affected Product

Vendor TryGhost

Product Ghost

Version >= 5.46.1, < 6.21.2

Affected Versions TryGhost Ghost >= 5.46.1, < 6.21.2

CWE Classification

CWE-200 CWE-693

References

github.com /TryGhost/Ghost/security/advisories/GHSA-jx35-x7fj-vgpr

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