by Kastro
Paper/Archive/CVE-2026-29053

CVE-2026-29053

TryGhost Ghost — Ghost Vulnerable to Remote Code Execution via Malicious Themes

EPSS 5%CVSS 9.8
critical.is priorityof 100
48
CVSS 9.8 (NVD)9.8 / 10 × 3029.4Not in CISA KEV+300.0EPSS percentile 92.1.921 × 2018.4No public exploit+100.0SSVC exploitation: none+100.0
Description · from the CVE record

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.

Affected

ProductAffectedFixed inSource
Ghost>= 0.7.2, < 6.19.1–CNA

Scores by source

NVD9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
GitHub_M (CNA)7.7CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:C/C:H/I:H/A:H
CISA ADPSSVCExploitation: none · Automatable: no · Technical impact: total

References

refgithub.com/TryGhost/Ghost/security/advisories/GHSA-cgc2-rcrh-qr5x