Imporoper path validation in elFinder.NetCore
This affects all versions of package elFinder.NetCore. The ExtractAsync function within the FileSystem is vulnerable to arbitrary extraction due to insufficient validation.
Affected software
Click a technology to see all vulnerabilities affecting it.
| Platform | Package | Vulnerable versions | Fixed in |
|---|---|---|---|
| .NET (NuGet) | elFinder.NetCore | <= 1.3.5 | no fix |
References
- https://nvd.nist.gov/vuln/detail/CVE-2021-23427
- https://github.com/gordon-matt/elFinder.NetCore
- https://github.com/gordon-matt/elFinder.NetCore/blob/633da9a4d7d5c9baefd1730ee51bf7af54889600/elFinder.NetCore/Drivers/FileSystem/FileSystemDriver.cs#L226
- https://github.com/gordon-matt/elFinder.NetCore/blob/633da9a4d7d5c9baefd1730ee51bf7af54889600/elFinder.NetCore/Drivers/FileSystem/FileSystemDriver.cs%23L226
- https://snyk.io/vuln/SNYK-DOTNET-ELFINDERNETCORE-1567778
- CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H- Weakness (CWE)
CWE-20- Platform
- .NET (NuGet)
- Package
elFinder.NetCore- Disclosed
- 02.09.2021
- Updated
- 11.10.2026 11:23
Sources and licenses
OSV / GitHub Advisory Database - GHSA-wmpm-fq7r-jq56 - CC BY 4.0
Vulnerability history: elFinder.NetCore
All published vulnerabilities of this package (.NET (NuGet)), newest first. Shows whether this is a one-off slip or a package that needs watching.
- Total entries
- 2
- First → latest
- 09.2021 09.2021
- Without a fix
- 2
- Exploited in attacks
- 0
Severity breakdown
- Critical 1
- High 1
Disclosures per year
- 2021: 2
- 2022: 0
- 2023: 0
- 2024: 0
- 2025: 0
- 2026: 0
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Imporoper path validation in elFinder.NetCore this entry
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