CVE-2026-71966
8.8usmannasir · cyberpanel
CyberPanel versions 2.4.3 and earlier contain an OS command injection vulnerability in the StarRemoteTransfer functionality, which can be exploited by authenticated users.
Executive summary
An OS command injection vulnerability in CyberPanel allows authenticated attackers to execute arbitrary system commands, resulting in a high risk of total server compromise.
Vulnerability
The application fails to properly neutralize special elements used in OS commands within the StarRemoteTransfer function. An authenticated attacker can leverage this weakness to inject and execute malicious system commands with the privileges of the web application service.
Business impact
An attacker capable of executing arbitrary OS commands can gain full control over the host system, facilitating data exfiltration, installation of backdoors, or the deployment of ransomware. Given the CVSS score of 8.8, this flaw represents a major security risk that could disrupt business operations and compromise sensitive organizational data.
Remediation
Immediate Action: Update CyberPanel to the version incorporating the fix found in commit eca0c3cbeb35af8eaae9fafb094e8ef3cd923643.
Proactive Monitoring: Audit system logs for unusual shell process spawning and review application logs for unexpected input patterns directed at the StarRemoteTransfer component.
Compensating Controls: Restrict access to the administrative dashboard to trusted IP addresses and employ a Web Application Firewall to detect and block common command injection syntax.
Exploitation status
Public Exploit Available: Unknown.
Analyst recommendation
Given the severe impact of OS command injection, remediation should be prioritized. Organizations should ensure their CyberPanel instances are updated to the latest secure version to prevent unauthorized system access and potential data breach events.