Vulnerability in Ghost
CVE-2026-29053
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.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.6 (High). Vector: CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:C/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.049 (92.1th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 92nd percentile — 92.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.050 · newest: 0.049 · change: -0.001
Affected products
- Ghost
- Tryghost Ghost — versions >= 0.7.2, < 6.19.1
Weakness classification (CWE)
Public proof-of-concept exploits
References
- github.com/TryGhost/Ghost/security/advisories/GHSA-cgc2-rcrh-qr5x (Vendor Advisory)
Frequently asked questions
- What is CVE-2026-29053?
- CVE-2026-29053 is a high-severity vulnerability in Ghost, classified under Improper Neutralization of Special Elements in Output Used by a Downstream Component (Injection). CVSS score: 7.6/10. Published 2026-03-05.
- How severe is CVE-2026-29053?
- High severity. CVSS v3 base score is 7.6 out of 10.
- Is CVE-2026-29053 known to be exploited?
- 4 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.