Medium severity · published Aug 4, 2026
CVE-2026-70589
Ghost: Archived Offers can be Redeemed
4.8
CVSS
0.3%
EPSS
No
On KEV
Description
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 From 4.22.0 until 6.54.1, a missing validation check allowed users to redeem subscription offers that were no longer active.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.
CVSS vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N
Attack vector
Network
Complexity
High
Privileges
None
User interaction
None
Confidentiality
Low
Integrity
Low
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.3% · higher than 19% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
GH
Ghost · TryGhost
>= 4.22.0, < 6.54.1 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-70589
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-70589
github.com
https://github.com/TryGhost/Ghost/commit/d91c0fc52dfc987d71a9803dbcbe6447d21b92fb
github.com
https://github.com/TryGhost/Ghost/security/advisories/GHSA-4wx2-7gvj-qfq3
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