{"id":"CVE-2021-23428","aliases":["EUVD-2021-2028","GHSA-9rjp-r58j-fxgq"],"status":"published","title":"Directory Traversal","description":"This affects all versions of package elFinder.NetCore. The Path.Combine(...) method is used to create an absolute file path. Due to missing sanitation of the user input and a missing check of the generated path its possible to escape the Files directory via path traversal","severity":{"version":"3.1","score":8.6,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:L/E:F/RL:U/RC:C","level":"high","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-12","score":0.0167,"percentile":0.77127,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-20","CWE-22"],"published":"2021-09-01T14:30:12Z","modified":"2026-06-17T03:38:44Z","affected":[{"source":"ghsa","ecosystem":"NuGet","package":"elFinder.NetCore","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"last_affected":"1.3.5"}]}]},{"source":"osv","ecosystem":"NuGet","package":"elFinder.NetCore","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"last_affected":"1.3.5"}]}],"versions":["1.0.0","1.0.1","1.0.2","1.0.3","1.0.4","1.0.5","1.0.6","1.0.7","1.0.8","1.0.9","1.1.0","1.2.1","1.2.2","1.3.0","1.3.1","1.3.2","1.3.3","1.3.4","1.3.5"]}],"products":[{"vendor":"elfinder.netcore_project","product":"elfinder.netcore"}],"references":[{"url":"https://snyk.io/vuln/SNYK-DOTNET-ELFINDERNETCORE-1313838","tags":["x_refsource_MISC","x_transferred","Third Party Advisory","web"]},{"url":"https://github.com/gordon-matt/elFinder.NetCore","tags":["x_refsource_MISC","x_transferred","Product","Third Party Advisory","package"]},{"url":"https://github.com/gordon-matt/elFinder.NetCore/blob/633da9a4d7d5c9baefd1730ee51bf7af54889600/elFinder.NetCore/Drivers/FileSystem/FileSystemDriver.cs%23L387","tags":["x_refsource_MISC","x_transferred","Broken Link","web"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-23428","tags":["advisory"]},{"url":"https://github.com/gordon-matt/elFinder.NetCore/blob/633da9a4d7d5c9baefd1730ee51bf7af54889600/elFinder.NetCore/Drivers/FileSystem/FileSystemDriver.cs#L387","tags":["web"]},{"url":"https://github.com/advisories/GHSA-9rjp-r58j-fxgq"}],"sources":{"cve":[{"id":"CVE-2021-23428","title":"Directory Traversal","description":"This affects all versions of package elFinder.NetCore. The Path.Combine(...) method is used to create an absolute file path. Due to missing sanitation of the user input and a missing check of the generated path its possible to escape the Files directory via path traversal","status":"published","published":"2021-09-01T14:30:12.041Z","modified":"2024-09-16T22:24:58.738Z","cvss":[{"version":"3.1","score":8.6,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:L/E:F/RL:U/RC:C","level":"high","assessor":"cna"}],"updated_at":"2026-11-02T14:33:00.819444Z"}],"euvd":[{"id":"EUVD-2021-2028","description":"This affects all versions of package elFinder.NetCore. The Path.Combine(...) method is used to create an absolute file path. Due to missing sanitation of the user input and a missing check of the generated path its possible to escape the Files directory via path traversal","status":"published","published":"2021-09-01T14:30:12Z","modified":"2024-09-16T22:24:58Z","cvss":[{"version":"3.1","score":8.6,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:L/E:F/RL:U/RC:C","level":"high"}],"updated_at":"2026-11-03T00:55:03.452021Z"}],"ghsa":[{"id":"GHSA-9rjp-r58j-fxgq","title":"Path traversal in elFinder.NetCore","description":"This affects all versions of package elFinder.NetCore. The Path.Combine(...) method is used to create an absolute file path. Due to missing sanitation of the user input and a missing check of the generated path its possible to escape the Files directory via path traversal","status":"published","published":"2021-09-02T22:05:26Z","modified":"2023-01-27T05:00:52Z","cvss":[{"version":"3.1","score":8.6,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:L","level":"high"}],"cwes":["CWE-20","CWE-22"],"updated_at":"2026-11-02T14:36:15.574072Z"}],"nvd":[{"id":"CVE-2021-23428","description":"This affects all versions of package elFinder.NetCore. The Path.Combine(...) method is used to create an absolute file path. Due to missing sanitation of the user input and a missing check of the generated path its possible to escape the Files directory via path traversal","status":"published","published":"2021-09-01T15:15:08.52Z","modified":"2026-06-17T03:38:44.723Z","cvss":[{"version":"3.1","score":8.6,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:L","level":"high","assessor":"secondary"},{"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"},{"version":"2.0","score":7.5,"vector":"AV:N/AC:L/Au:N/C:P/I:P/A:P","level":"high","assessor":"primary"}],"cwes":["CWE-22"],"updated_at":"2026-11-02T14:06:57.67549Z"}],"osv":[{"id":"GHSA-9rjp-r58j-fxgq","title":"Path traversal in elFinder.NetCore","description":"This affects all versions of package elFinder.NetCore. The Path.Combine(...) method is used to create an absolute file path. Due to missing sanitation of the user input and a missing check of the generated path its possible to escape the Files directory via path traversal","status":"published","published":"2021-09-02T22:05:26Z","modified":"2026-03-13T22:11:17.814091Z","cvss":[{"version":"3.1","score":8.6,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:L","level":"high"}],"cwes":["CWE-20","CWE-22"],"updated_at":"2026-11-02T15:46:44.225359Z"}]}}