EXECUTIVE SUMMARY:
A remote code execution (RCE) vulnerability exists in CVE-2026-29053 the Ghost content management system, wherein an attacker can craft a malicious theme to execute arbitrary code on a server hosting Ghost, potentially leading to full system compromise, elevated privileges, and disruption of confidentiality, integrity, and availability for affected deployments. This issue arises from insecure handling of untrusted theme content that allows execution of attacker‑controlled logic, and it has been addressed in patched releases; administrators are strongly advised to update to the fixed version and avoid installing untrusted themes to mitigate risk. The vulnerability has a CVSS score of 7.7.[/subscribe_to_unlock_form]
EXECUTIVE SUMMARY:
A remote code execution (RCE) vulnerability exists in CVE-2026-29053 the Ghost content management system, wherein an attacker can craft a malicious theme to execute arbitrary code on a server hosting Ghost, potentially leading to full system compromise, elevated privileges, and disruption of confidentiality, integrity, and availability for affected deployments. This issue arises from insecure handling of untrusted theme content that allows execution of attacker‑controlled logic, and it has been addressed in patched releases; administrators are strongly advised to update to the fixed version and avoid installing untrusted themes to mitigate risk. The vulnerability has a CVSS score of 7.7.[emaillocker id="1283"]
RECOMMENDATION:
REFERENCES:
The following reports contain further technical details:
[/emaillocker]