{"id":"CVE-2021-47816","aliases":["EUVD-2026-2902","GHSA-6qxr-24qm-qr24"],"status":"published","title":"Thecus N4800Eco Nas Server Control Panel - Command Injection","description":"Thecus N4800Eco NAS Server Control Panel contains a command injection vulnerability that allows authenticated attackers to execute arbitrary system commands through user management endpoints. Attackers can inject commands via username and batch user creation parameters to execute shell commands with administrative privileges.","severity":{"version":"4.0","score":5.3,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-12","score":0.01805,"percentile":0.78876,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-78"],"published":"2026-01-16T19:09:26Z","modified":"2026-07-28T01:47:25Z","products":[{"vendor":"thecus","product":"thecus n4800eco nas server control panel"}],"references":[{"url":"https://www.exploit-db.com/exploits/49926","tags":["exploit"]},{"url":"http://www.thecus.com/","tags":["product"]},{"url":"http://www.thecus.com/product.php?PROD_ID=83","tags":["product"]},{"url":"https://docs.unsafe-inline.com/0day/thecus-n4800eco-nas-server-control-panel-comand-injection","tags":["technical-description","exploit"]},{"url":"https://www.vulncheck.com/advisories/thecus-neco-nas-server-control-panel-command-injection","tags":["third-party-advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-47816"},{"url":"http://www.thecus.com"},{"url":"https://github.com/advisories/GHSA-6qxr-24qm-qr24"}],"sources":{"cve":[{"id":"CVE-2021-47816","title":"Thecus N4800Eco Nas Server Control Panel - Command Injection","description":"Thecus N4800Eco NAS Server Control Panel contains a command injection vulnerability that allows authenticated attackers to execute arbitrary system commands through user management endpoints. Attackers can inject commands via username and batch user creation parameters to execute shell commands with administrative privileges.","status":"published","published":"2026-01-16T19:09:26.929Z","modified":"2026-07-28T01:47:25.118Z","cvss":[{"version":"4.0","score":5.3,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N","level":"medium","assessor":"cna"},{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"cna"}],"cwes":["CWE-78"],"updated_at":"2026-11-02T14:32:56.308189Z"}],"euvd":[{"id":"EUVD-2026-2902","description":"Thecus N4800Eco NAS Server Control Panel contains a command injection vulnerability that allows authenticated attackers to execute arbitrary system commands through user management endpoints. Attackers can inject commands via username and batch user creation parameters to execute shell commands with administrative privileges.","status":"published","published":"2026-01-16T19:09:26Z","modified":"2026-07-28T01:47:25Z","cvss":[{"version":"4.0","score":5.3,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N","level":"medium"}],"updated_at":"2026-11-02T18:02:32.984181Z"}],"ghsa":[{"id":"GHSA-6qxr-24qm-qr24","title":"Thecus N4800Eco NAS Server Control Panel contains a command injection vulnerability that allows...","description":"Thecus N4800Eco NAS Server Control Panel contains a command injection vulnerability that allows authenticated attackers to execute arbitrary system commands through user management endpoints. Attackers can inject commands via username and batch user creation parameters to execute shell commands with administrative privileges.","status":"published","published":"2026-01-16T21:30:36Z","modified":"2026-01-16T21:30:42Z","cvss":[{"version":"4.0","score":5.3,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","level":"medium"},{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"cwes":["CWE-78"],"updated_at":"2026-11-02T15:05:38.741943Z"}],"nvd":[{"id":"CVE-2021-47816","description":"Thecus N4800Eco NAS Server Control Panel contains a command injection vulnerability that allows authenticated attackers to execute arbitrary system commands through user management endpoints. Attackers can inject commands via username and batch user creation parameters to execute shell commands with administrative privileges.","status":"published","published":"2026-01-16T19:16:06.197Z","modified":"2026-06-17T04:18:32.947Z","cvss":[{"version":"4.0","score":5.3,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","level":"medium","assessor":"secondary"},{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"secondary"}],"cwes":["CWE-78"],"updated_at":"2026-11-02T14:07:09.005706Z"}]}}