Every CVESearch/Get API key

CVE-2021-23428

Directory Traversal

8.6 High

CVE-2021-23428 is a high vulnerability (CVSS 8.6) in Elfinder.netcore Project Elfinder.netcore, published September 1, 2021. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.67%, the 77th percentile. No source names a fixed version.

What does this mean?
Severity
8.6 HighCVSS 3.1, CVE List
Exploit chance
1.67%EPSS, 77th percentile
Exploitation
None knownNot on CISA’s or ENISA’s lists
Fixed in
No fix listedNo source names one

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

Attack profile

How easy it is to exploit

Attack vector
Network
Complexity
Low
Privileges needed
None
User interaction
None

What an attacker can affect

Confidentiality
High
Integrity
Low
Availability
Low

Exploit likelihood

1.67%Up 0.8 points since Sep 2, 2021
90%50%10%1%

Affected products

Affected packages

Affected packages
PackageAffectedFixed
elFinder.NetCore
NuGet
through 1.3.5None known
elFinder.NetCore
NuGet
through 1.3.5, plus listed versions
1.0.01.0.11.0.21.0.31.0.4
Show 13 moreShow less
1.0.51.0.61.0.71.0.81.0.91.1.01.2.11.2.21.3.01.3.11.3.21.3.31.3.4
None known

What each source reports

CVE List Score used8.6

Directory Traversal

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

Record
CVE-2021-23428
CVSS 3.1
8.6 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:L/E:F/RL:U/RC:C
Updated
2026-11-02
EUVDEUVD-2021-20288.6

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

Record
EUVD-2021-2028
CVSS 3.1
8.6 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:L/E:F/RL:U/RC:C
Updated
2026-11-03
GitHub AdvisoriesGHSA-9rjp-r58j-fxgq8.6

Path traversal in elFinder.NetCore

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

Record
GHSA-9rjp-r58j-fxgq
CVSS 3.1
8.6 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:L
Weakness
CWE-20, CWE-22
Updated
2026-11-02
NVD8.6

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

Record
CVE-2021-23428
CVSS 3.1
8.6 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:L
CVSS 3.1
9.8 CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS 2.0
7.5 HighAV:N/AC:L/Au:N/C:P/I:P/A:P
Weakness
CWE-22
Updated
2026-11-02
OSVGHSA-9rjp-r58j-fxgq8.6

Path traversal in elFinder.NetCore

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

Record
GHSA-9rjp-r58j-fxgq
CVSS 3.1
8.6 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:L
Weakness
CWE-20, CWE-22
Updated
2026-11-02

History

History
RecordedChangedSources
facts
aliases, publishedEUVD
first indexedCVE List, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

References

PagesAll vulnerabilitiesBrowseDocsSourcesGuideGet API key
MoveEnter Open