Critical severity · published Mar 5, 2026
CVE-2026-29053
Ghost Vulnerable to Remote Code Execution via Malicious Themes
9.8
CVSS
4.8%
EPSS
No
On KEV
Description
Ghost is a Node.js content management system. From version 0.7.2 to 6.19.0, specifically crafted malicious themes can execute arbitrary code on the server running Ghost. This issue has been patched in version 6.19.1.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)4.8% · higher than 92% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
GH
Ghost · TryGhost
>= 0.7.2, < 6.19.1 · source: vendor, NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-29053
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-29053
Vendor Advisory
https://github.com/TryGhost/Ghost/security/advisories/GHSA-cgc2-rcrh-qr5x
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