{"id":"CVE-2021-43421","aliases":["EUVD-2022-1864","GHSA-x4jx-hjwf-gc99"],"status":"published","title":"elFinder Unrestricted File Upload vulnerability","description":"A File Upload vulnerability exists in Studio-42 elFinder 2.0.4 to 2.1.59 via connector.minimal.php, which allows a remote malicious user to upload arbitrary files and execute PHP code.","severity":{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-12","score":0.42781,"percentile":0.98733,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-434"],"published":"2022-04-07T16:18:14Z","modified":"2026-10-20T10:54:07Z","exploits":[{"source":"nuclei","id":"CVE-2021-43421","title":"Studio-42 elFinder \u003c2.1.60 - Arbitrary File Upload","type":"detection template","url":"https://github.com/projectdiscovery/nuclei-templates/blob/main/http/cves/2021/CVE-2021-43421.yaml"}],"fixes":[{"ecosystem":"Packagist","package":"studio-42/elfinder","fixed_in":["2.1.60"],"sources":["ghsa","osv"]}],"affected":[{"source":"ghsa","ecosystem":"Packagist","package":"studio-42/elfinder","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"2.0.4"},{"fixed":"2.1.60"}]}]},{"source":"osv","ecosystem":"Packagist","package":"studio-42/elfinder","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"2.0.4"},{"fixed":"2.1.60"}]}],"versions":["2.0.4","2.0.5","2.0.6","2.0.7","2.0.8","2.0.9","2.1.0","2.1.1","2.1.10","2.1.11","2.1.12","2.1.13","2.1.14","2.1.15","2.1.16","2.1.17","2.1.18","2.1.19","2.1.2","2.1.20","2.1.21","2.1.22","2.1.23","2.1.24","2.1.25","2.1.26","2.1.27","2.1.28","2.1.29","2.1.3","2.1.30","2.1.31","2.1.32","2.1.33","2.1.34","2.1.35","2.1.36","2.1.37","2.1.38","2.1.39","2.1.4","2.1.40","2.1.41","2.1.42","2.1.43","2.1.44","2.1.45","2.1.46","2.1.47","2.1.48","2.1.49","2.1.5","2.1.50","2.1.51","2.1.52","2.1.53","2.1.54","2.1.55","2.1.56","2.1.57","2.1.58","2.1.59","2.1.6","2.1.7","2.1.8","2.1.9"]}],"products":[{"vendor":"std42","product":"elfinder"}],"references":[{"url":"https://github.com/Studio-42/elFinder/issues/3429","tags":["x_refsource_MISC","x_transferred","Exploit","Issue Tracking","Third Party Advisory","report","web"]},{"url":"https://twitter.com/infosec_90/status/1455180286354919425","tags":["x_refsource_MISC","x_transferred","Third Party Advisory","advisory","web"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-43421","tags":["advisory"]},{"url":"https://github.com/Studio-42/elFinder/commit/c08bcbfa722d758d01975799b7036951eb5d33cb","tags":["web"]},{"url":"https://github.com/advisories/GHSA-x4jx-hjwf-gc99"},{"url":"https://github.com/Studio-42/elFinder","tags":["package"]}],"sources":{"cve":[{"id":"CVE-2021-43421","description":"A File Upload vulnerability exists in Studio-42 elFinder 2.0.4 to 2.1.59 via connector.minimal.php, which allows a remote malicious user to upload arbitrary files and execute PHP code.","status":"published","published":"2022-04-07T16:18:14Z","modified":"2024-08-04T03:55:29.262Z","updated_at":"2026-11-02T14:32:57.033395Z"}],"euvd":[{"id":"EUVD-2022-1864","description":"A File Upload vulnerability exists in Studio-42 elFinder 2.0.4 to 2.1.59 via connector.minimal.php, which allows a remote malicious user to upload arbitrary files and execute PHP code.","status":"published","published":"2022-04-07T16:18:14Z","modified":"2024-08-04T03:55:29Z","updated_at":"2026-11-03T03:24:13.772922Z"}],"ghsa":[{"id":"GHSA-x4jx-hjwf-gc99","title":"elFinder Unrestricted File Upload vulnerability","description":"A File Upload vulnerability exists in Studio-42 elFinder 2.0.4 to 2.1.59 via `connector.minimal.php`, which allows a remote malicious user to upload arbitrary files and execute PHP code.","status":"published","published":"2022-04-08T00:00:23Z","modified":"2024-01-10T19:33:10Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical"}],"cwes":["CWE-434"],"updated_at":"2026-11-02T14:37:30.812736Z"}],"nvd":[{"id":"CVE-2021-43421","description":"A File Upload vulnerability exists in Studio-42 elFinder 2.0.4 to 2.1.59 via connector.minimal.php, which allows a 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code.","status":"published","published":"2022-04-07T17:15:08.72Z","modified":"2026-10-20T10:54:07.877310584Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical"}],"updated_at":"2026-11-02T15:44:21.877444Z"},{"id":"GHSA-x4jx-hjwf-gc99","title":"elFinder Unrestricted File Upload vulnerability","description":"A File Upload vulnerability exists in Studio-42 elFinder 2.0.4 to 2.1.59 via `connector.minimal.php`, which allows a remote malicious user to upload arbitrary files and execute PHP code.","status":"published","published":"2022-04-08T00:00:23Z","modified":"2024-02-16T08:08:42.912906Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical"}],"cwes":["CWE-434"],"updated_at":"2026-11-02T15:46:59.484835Z"}]}}