CVE-2021-23428

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

Category

8.6
CVSS
Severity: High
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.75% Top 30%
Third-Party Advisory github.com Third-Party Advisory snyk.io
Affected: n/a elFinder.NetCore
Published at:
Updated at:

References

Link Tags
https://snyk.io/vuln/SNYK-DOTNET-ELFINDERNETCORE-1313838 third party advisory
https://github.com/gordon-matt/elFinder.NetCore third party advisory product
https://github.com/gordon-matt/elFinder.NetCore/blob/633da9a4d7d5c9baefd1730ee51bf7af54889600/elFinder.NetCore/Drivers/FileSystem/FileSystemDriver.cs%23L387 broken link

Frequently Asked Questions

What is the severity of CVE-2021-23428?
CVE-2021-23428 has been scored as a high severity vulnerability.
How to fix CVE-2021-23428?
To fix CVE-2021-23428, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2021-23428 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2021-23428 is being actively exploited. According to its EPSS score, there is a ~1% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2021-23428?
CVE-2021-23428 affects n/a elFinder.NetCore.
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