CVE-2026-104418: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') in TryGhost Ghost
Ghost from 6.10.3 before 6.64.0 contains a remote code execution vulnerability that allows authenticated administrators to run code by abusing theme translation file loading. Attackers with administrator access can upload a crafted theme containing malicious translation files to execute arbitrary code on the Ghost server.
AI Analysis
Technical Summary
CVE-2026-104418 is a remote code execution vulnerability in TryGhost Ghost affecting versions >=6.10.3 and <6.64.0. Authenticated administrators can exploit this by uploading a specially crafted theme containing malicious translation files. The vulnerability stems from improper limitation of pathnames to restricted directories during the loading of theme translation files, allowing arbitrary code execution on the Ghost server.
Potential Impact
An attacker with administrator privileges can execute arbitrary code on the Ghost server, potentially leading to full system compromise. This elevates the risk of unauthorized actions, data breaches, or service disruption.
Mitigation Recommendations
Upgrade Ghost to version 6.64.0 or later where this vulnerability is fixed. Since the vulnerability requires administrator access, ensure that administrator accounts are tightly controlled and monitored until the patch is applied.
CVE-2026-104418: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') in TryGhost Ghost
Description
Ghost from 6.10.3 before 6.64.0 contains a remote code execution vulnerability that allows authenticated administrators to run code by abusing theme translation file loading. Attackers with administrator access can upload a crafted theme containing malicious translation files to execute arbitrary code on the Ghost server.
CVSS v4.0
Score 8.6high
Affected software
TryGhost
Ghost
pkg:github/tryghost/GhostRun on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-104418 is a remote code execution vulnerability in TryGhost Ghost affecting versions >=6.10.3 and <6.64.0. Authenticated administrators can exploit this by uploading a specially crafted theme containing malicious translation files. The vulnerability stems from improper limitation of pathnames to restricted directories during the loading of theme translation files, allowing arbitrary code execution on the Ghost server.
Potential Impact
An attacker with administrator privileges can execute arbitrary code on the Ghost server, potentially leading to full system compromise. This elevates the risk of unauthorized actions, data breaches, or service disruption.
Mitigation Recommendations
Upgrade Ghost to version 6.64.0 or later where this vulnerability is fixed. Since the vulnerability requires administrator access, ensure that administrator accounts are tightly controlled and monitored until the patch is applied.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- VulnCheck
- Date Reserved
- 2026-10-02T00:44:44.529Z
- Cvss Version
- 4.0
- State
- PUBLISHED
Threat ID: 6abf99afa43b0b3b89b268fd
Added to database: 10/02/2026, 11:46:55 UTC
Last enriched: 10/02/2026, 12:16:32 UTC
Last updated: 10/02/2026, 21:28:55 UTC
Views: 4
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