{"id":"CVE-2026-16283","published":"2026-11-09T14:17:16.700","lastModified":"2026-11-10T16:24:34.337","description":"Improper neutralization of special elements used in an OS command ('OS command injection') vulnerability in Osbil Technology Ltd.Osbil Technology Ltd. OPanel allows OS Command Injection.\n\nThis issue affects oPanel: before 1.20.66.","cvssScore":8.8,"cvssSeverity":"HIGH","cvssVector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","cwes":["CWE-78"],"vendors":[],"products":[],"references":[{"url":"https://siberguvenlik.gov.tr/guvenlik-bildirimleri/detay/tr-26-1488","tags":[]}],"exploitRefs":[],"hasPoc":false,"ai":{"summary":"An OS command injection vulnerability exists in Osbil Technology Ltd.'s oPanel before version 1.20.66 due to improper neutralization of user-supplied input passed to OS commands, allowing authenticated attackers to execute arbitrary system commands on the underlying host.","exploitability":"Exploitation requires low-skilled attacker capabilities with valid low-privileged access (PR:L) and no user interaction (UI:N), making it highly exploitable in compromised or insider-threat scenarios.","blast_radius":"Successful exploitation grants full compromise of confidentiality, integrity, and availability on the affected system, potentially enabling lateral movement, data exfiltration, or persistent backdoor deployment within the network.","remediation":"Upgrade oPanel to version 1.20.66 or later, as this is the specific fixed version published by the vendor.","detection":"Defenders should monitor application and system logs for unusual command execution patterns, such as unexpected shell invocations (e.g., /bin/sh, cmd.exe), execution of non-standard binaries, or anomalous subprocess spawning from the oPanel service process; however, no specific log signatures are reliably derivable from the published description.","tags":["os-command-injection","rce","web-app","auth-required"],"model":"garnet-coder","analyzedAt":"2026-11-10T09:47:31.217Z"}}