{"id":"CVE-2026-29053","aliases":["BIT-ghost-2026-29053","GHSA-cgc2-rcrh-qr5x"],"url":"https://o3.security/vulnerability/CVE-2026-29053","summary":"Ghost Vulnerable to Remote Code Execution via Malicious Themes","details":"### Impact\n\nSpecifically crafted malicious themes can execute arbitrary code on the server running Ghost. \n\n### Vulnerable Versions\n\nThis vulnerability is present in Ghost v0.7.2 to v6.19.0.\n\n### Patches\n\nv6.19.1 contains a fix for this issue.\n\n### Workarounds\n\nGhost generally recommends users refrain from installing untrusted themes. If a malicious theme has already been installed, it is recommended to uninstall the theme and then inspect it to understand its impact, which will be attack-specific. \n\n### References\nGhost thanks Cristian-Alexandru Staicu at Endor Labs for disclosing this vulnerability responsibly. \n\n### For more information\n\nIf there are any questions or comments about this advisory, email Ghost at [security@ghost.org](mailto:security@ghost.org).","published":"2026-03-05T05:51:41.166Z","modified":"2026-08-12T03:51:40.130062177Z","cvss":{"score":7.6,"severity":"HIGH","vector":"CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:C/C:H/I:H/A:H"},"epss":null,"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"npm","name":"ghost","fixedVersion":"6.19.1"}],"fix":null,"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/29xxx/CVE-2026-29053.json"},{"type":"ADVISORY","url":"https://github.com/TryGhost/Ghost/security/advisories/GHSA-cgc2-rcrh-qr5x"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-29053"},{"type":"PACKAGE","url":"https://github.com/TryGhost/Ghost"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-08-12T03:51:40.130062177Z"}}