CVE-2021-23428 — Path traversal in elFinder.NetCore — CVE Details
HIGH
Path traversal in elFinder.NetCore
Published September 2, 2021Updated March 13, 2026Source: osv
Summary
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
Advisory Timeline
- First published September 2, 2021 (1866 days ago).
- Last revised March 13, 2026 — 1653 days after initial publication.
Affected Packages (1)
Affects 1 ecosystem: nuget (1).
| Package | Ecosystem | Affected | Fixed In |
|---|---|---|---|
| elFinder.NetCore | nuget | 1.0.0, 1.0.1, 1.0.2, 1.0.3 (+15 more) | Range-based data available |
Vulnerability Classification
Common Weakness Enumeration (CWE) identifiers for this vulnerability type.
CVSS Score Breakdown
What the CVSS (Common Vulnerability Scoring System) 8.6 score means for each attack dimension.
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
Low
Availability
Low
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:L
References
- https://nvd.nist.gov/vuln/detail/CVE-2021-23428ADVISORY
- https://github.com/gordon-matt/elFinder.NetCorePACKAGE
- https://github.com/gordon-matt/elFinder.NetCore/blob/633da9a4d7d5c9baefd1730ee51bf7af54889600/elFinder.NetCore/Drivers/FileSystem/FileSystemDriver.cs#L387WEB
- https://github.com/gordon-matt/elFinder.NetCore/blob/633da9a4d7d5c9baefd1730ee51bf7af54889600/elFinder.NetCore/Drivers/FileSystem/FileSystemDriver.cs%23L387WEB
- https://snyk.io/vuln/SNYK-DOTNET-ELFINDERNETCORE-1313838WEB
Frequently Asked Questions
- What is CVE-2021-23428?
- Path traversal in elFinder.NetCore This vulnerability has been assigned a severity rating of HIGH (CVSS score: 8.6/10).
- How do I check if my project is affected by CVE-2021-23428?
- CVE-2021-23428 affects elFinder.NetCore. Use GeekWala's free vulnerability scanner to check your dependencies against CVE-2021-23428 and 200,000+ other known vulnerabilities.
Severity & Exploitability
CVSS Score
8.6
High exploitability or significant impact. Prioritize remediation within days.
Also Known As
GHSA-9rjp-r58j-fxgq
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