CVE-2026-53949: 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…

PriorityP432medium5.3CVSS 3.1

AVNACLPRNUINSUCLINAN

EPSS

0.36%

27.3th percentile

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.

Affected

2 ranges

Vendor	Product	Version range	Fixed in
ghost	ghost	>= 5.46.1 < 6.21.2	6.21.2
tryghost	ghost	—	—

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