{"id":"GHSA-wmpm-fq7r-jq56","summary":"Imporoper path validation in elFinder.NetCore","details":"This affects all versions of package elFinder.NetCore. The ExtractAsync function within the FileSystem is vulnerable to arbitrary extraction due to insufficient validation.","aliases":["CVE-2021-23427"],"modified":"2026-03-13T21:56:55.998354Z","published":"2021-09-02T22:05:17Z","database_specific":{"cwe_ids":["CWE-20"],"severity":"CRITICAL","github_reviewed":true,"github_reviewed_at":"2021-09-02T18:03:43Z","nvd_published_at":"2021-09-01T15:15:00Z"},"references":[{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2021-23427"},{"type":"PACKAGE","url":"https://github.com/gordon-matt/elFinder.NetCore"},{"type":"WEB","url":"https://github.com/gordon-matt/elFinder.NetCore/blob/633da9a4d7d5c9baefd1730ee51bf7af54889600/elFinder.NetCore/Drivers/FileSystem/FileSystemDriver.cs#L226"},{"type":"WEB","url":"https://github.com/gordon-matt/elFinder.NetCore/blob/633da9a4d7d5c9baefd1730ee51bf7af54889600/elFinder.NetCore/Drivers/FileSystem/FileSystemDriver.cs%23L226"},{"type":"WEB","url":"https://snyk.io/vuln/SNYK-DOTNET-ELFINDERNETCORE-1567778"}],"affected":[{"package":{"name":"elFinder.NetCore","ecosystem":"NuGet","purl":"pkg:nuget/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"],"database_specific":{"source":"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2021/09/GHSA-wmpm-fq7r-jq56/GHSA-wmpm-fq7r-jq56.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"}]}