OS Command Injection in Hestia Control Panel - #VU140558
Published: July 30, 2026
Vulnerability identifier: #VU140558
CSH Severity: Medium
CVSS v4: 8.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]
CVE-ID: N/A
CWE-ID: CWE-78
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote user to execute arbitrary code as root.
The vulnerability exists due to improper neutralization of special elements used in an os command in v-add-cron-job and parse_object_kv_list when handling a crafted cron job creation request. A remote user can send a specially crafted HTTP POST request to execute arbitrary code as root.
The issue can be triggered with a single request during form submission without waiting for cron execution.
Affected software
Hestia Control Panel
Remediation
Install security update from vendor's website.
Hestia Control Panel - update to 1.9.5