CVE-2026-70589: Ghost is a Node.js content management system. From 4.22.0 until 6.54.1, a missing validation check allowed users to redeem subscription offers that were no…

PriorityP423medium4.8CVSS 3.1

AVNACHPRNUINSUCLILAN

EPSS

0.27%

17.4th percentile

Ghost is a Node.js content management system. From 4.22.0 until 6.54.1, a missing validation check allowed users to redeem subscription offers that were no longer active. This issue is fixed in version 6.54.1.

Affected

2 ranges

Vendor	Product	Version range	Fixed in
ghost	ghost	>= 4.22.0 < 6.54.1	6.54.1
tryghost	ghost	—	—

Stop checking back — get the weekly exploitation signal.

Every Monday: what got weaponized or added to CISA KEV in the last seven days — each CVE cross-linked to its PoC, Nuclei template, and detection rule. Free, one email a week, unsubscribe in one click.