{"id":"CVE-2021-3317","aliases":["EUVD-2021-26648","GHSA-w7mw-3wp8-x68j"],"status":"published","title":"KLog Server through 2.4.1 allows authenticated command injection. async.php calls shell_exec() on...","description":"KLog Server through 2.4.1 allows authenticated command injection. async.php calls shell_exec() on the original value of the source parameter.","severity":{"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":"primary","from":"nvd"},"epss":{"day":"2026-11-10","score":0.41394,"percentile":0.98685,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":true,"fix_available":false},"cwes":["CWE-77","CWE-78"],"published":"2021-01-26T22:33:58Z","modified":"2026-06-17T04:04:55Z","exploits":[{"source":"exploitdb","id":"EDB-49511","title":"Klog Server 2.4.1 - Command Injection (Authenticated)","type":"webapps","platform":"php","date":"2021-02-01","url":"https://www.exploit-db.com/exploits/49511"},{"source":"pocgithub","id":"Al1ex/CVE-2021-3317","title":"Al1ex/CVE-2021-3317","date":"2021-04-09","url":"https://github.com/Al1ex/CVE-2021-3317"}],"products":[{"vendor":"klogserver","product":"klog_server"}],"references":[{"url":"https://docs.unsafe-inline.com/0day/klog-server-authenticated-command-injection","tags":["x_refsource_MISC","x_transferred","Exploit","Third Party Advisory"]},{"url":"http://packetstormsecurity.com/files/161208/Klog-Server-2.4.1-Command-Injection.html","tags":["x_refsource_MISC","x_transferred","Exploit","Third Party Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-3317"},{"url":"https://github.com/advisories/GHSA-w7mw-3wp8-x68j"}],"sources":{"cve":[{"id":"CVE-2021-3317","description":"KLog Server through 2.4.1 allows authenticated command injection. async.php calls shell_exec() on the original value of the source parameter.","status":"published","published":"2021-01-26T22:33:58Z","modified":"2024-08-03T16:53:17.45Z","updated_at":"2026-11-02T14:33:03.671751Z"}],"euvd":[{"id":"EUVD-2021-26648","description":"KLog Server through 2.4.1 allows authenticated command injection. async.php calls shell_exec() on the original value of the source parameter.","status":"published","published":"2021-01-26T22:33:58Z","modified":"2024-08-03T16:53:17Z","updated_at":"2026-11-03T03:25:13.531128Z"}],"ghsa":[{"id":"GHSA-w7mw-3wp8-x68j","title":"KLog Server through 2.4.1 allows authenticated command injection. async.php calls shell_exec() on...","description":"KLog Server through 2.4.1 allows authenticated command injection. async.php calls shell_exec() on the original value of the source parameter.","status":"published","published":"2022-05-24T17:40:28Z","modified":"2023-01-27T05:03:01Z","cvss":[{"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-77"],"updated_at":"2026-11-02T14:42:09.126228Z"}],"nvd":[{"id":"CVE-2021-3317","description":"KLog Server through 2.4.1 allows authenticated command injection. async.php calls shell_exec() on the original value of the source parameter.","status":"published","published":"2021-01-26T23:15:13.047Z","modified":"2026-06-17T04:04:55.823Z","cvss":[{"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":"primary"},{"version":"2.0","score":6.5,"vector":"AV:N/AC:L/Au:S/C:P/I:P/A:P","level":"medium","assessor":"primary"}],"cwes":["CWE-78"],"updated_at":"2026-11-02T14:06:49.660551Z"}]}}