{"id":"CVE-2021-40904","aliases":["EUVD-2021-28059","GHSA-f6hf-q5rw-f57w","UBUNTU-CVE-2021-40904"],"status":"published","title":"The web management console of CheckMK Raw Edition (versions 1.5.0 to 1.6.0) allows a...","description":"The web management console of CheckMK Raw Edition (versions 1.5.0 to 1.6.0) allows a misconfiguration of the web-app Dokuwiki (installed by default), which allows embedded php code. As a result, remote code execution is achieved. Successful exploitation requires access to the web management interface, either with valid credentials or with a hijacked session by a user with the role of administrator.","severity":{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","level":"high","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-10","score":0.03692,"percentile":0.89804,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":true,"fix_available":false},"cwes":["CWE-276"],"published":"2022-03-25T22:19:59Z","modified":"2026-10-24T10:30:47Z","exploits":[{"source":"pocgithub","id":"Edgarloyola/CVE-2021-40904","title":"Edgarloyola/CVE-2021-40904","date":"2021-10-12","url":"https://github.com/Edgarloyola/CVE-2021-40904"}],"affected":[{"source":"osv","ecosystem":"Ubuntu:Pro:16.04:LTS","package":"check-mk","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.2.6p5-1","1.2.6p12-1","1.2.6p12-1ubuntu0.16.04.1","1.2.6p12-1ubuntu0.16.04.1+esm1"]},{"source":"osv","ecosystem":"Ubuntu:18.04:LTS","package":"check-mk","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.2.8p16-1ubuntu0.1","1.2.8p16-1ubuntu0.2"]}],"products":[{"vendor":"checkmk","product":"checkmk"}],"references":[{"url":"https://github.com/Edgarloyola/CVE-2021-40904","tags":["x_refsource_MISC","x_transferred","Exploit","Patch","Third Party Advisory","fix","report"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-40904"},{"url":"http://checkmk.com"},{"url":"https://github.com/advisories/GHSA-f6hf-q5rw-f57w"},{"url":"https://ubuntu.com/security/CVE-2021-40904","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2021-40904","tags":["report"]}],"sources":{"cve":[{"id":"CVE-2021-40904","description":"The web management console of CheckMK Raw Edition (versions 1.5.0 to 1.6.0) allows a misconfiguration of the web-app Dokuwiki (installed by default), which allows embedded php code. As a result, remote code execution is achieved. Successful exploitation requires access to the web management interface, either with valid credentials or with a hijacked session by a user with the role of administrator.","status":"published","published":"2022-03-25T22:19:59Z","modified":"2026-07-09T00:14:47.78Z","updated_at":"2026-11-02T14:33:01.495293Z"}],"euvd":[{"id":"EUVD-2021-28059","description":"The web management console of CheckMK Raw Edition (versions 1.5.0 to 1.6.0) allows a misconfiguration of the web-app Dokuwiki (installed by default), which allows embedded php code. As a result, remote code execution is achieved. Successful exploitation requires access to the web management interface, either with valid credentials or with a hijacked session by a user with the role of administrator.","status":"published","published":"2022-03-25T22:19:59Z","modified":"2026-07-09T00:14:47Z","updated_at":"2026-11-02T18:20:08.60883Z"}],"ghsa":[{"id":"GHSA-f6hf-q5rw-f57w","title":"The web management console of CheckMK Raw Edition (versions 1.5.0 to 1.6.0) allows a...","description":"The web management console of CheckMK Raw Edition (versions 1.5.0 to 1.6.0) allows a misconfiguration of the web-app Dokuwiki (installed by default), which allows embedded php code. As a result, remote code execution is achieved. Successful exploitation requires access to the web management interface, either with valid credentials or with a hijacked session by a user with the role of administrator.","status":"published","published":"2022-03-27T00:00:39Z","modified":"2023-01-27T05:01:04Z","cvss":[{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","level":"high"}],"cwes":["CWE-276"],"updated_at":"2026-11-02T14:41:48.523978Z"}],"nvd":[{"id":"CVE-2021-40904","description":"The web management console of CheckMK Raw Edition (versions 1.5.0 to 1.6.0) allows a misconfiguration of the web-app Dokuwiki (installed by default), which allows embedded php code. As a result, remote code execution is achieved. Successful exploitation requires access to the web management interface, either with valid credentials or with a hijacked session by a user with the role of administrator.","status":"published","published":"2022-03-25T23:15:08.187Z","modified":"2026-07-09T01:17:02.187Z","cvss":[{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","level":"high","assessor":"primary"},{"version":"2.0","score":6.8,"vector":"AV:N/AC:M/Au:N/C:P/I:P/A:P","level":"medium","assessor":"primary"}],"cwes":["CWE-276"],"updated_at":"2026-11-02T14:07:05.581807Z"}],"osv":[{"id":"CVE-2021-40904","description":"The web management console of CheckMK Raw Edition (versions 1.5.0 to 1.6.0) allows a misconfiguration of the web-app Dokuwiki (installed by default), which allows embedded php code. As a result, remote code execution is achieved. Successful exploitation requires access to the web management interface, either with valid credentials or with a hijacked session by a user with the role of administrator.","status":"published","published":"2022-03-25T23:15:08.187Z","modified":"2026-10-24T10:30:47.281453327Z","cvss":[{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","level":"high"}],"updated_at":"2026-11-02T15:44:21.249056Z"},{"id":"UBUNTU-CVE-2021-40904","description":"The web management console of CheckMK Raw Edition (versions 1.5.0 to 1.6.0) allows a misconfiguration of the web-app Dokuwiki (installed by default), which allows embedded php code. As a result, remote code execution is achieved. Successful exploitation requires access to the web management interface, either with valid credentials or with a hijacked session by a user with the role of administrator.","status":"published","published":"2022-03-25T23:15:00Z","modified":"2025-10-24T04:50:34Z","cvss":[{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","level":"high"}],"updated_at":"2026-11-02T15:54:29.220315Z"}]}}