CVE-2021-40978

Public Exploit

Description

The mkdocs 1.2.2 built-in dev-server allows directory traversal using the port 8000, enabling remote exploitation to obtain :sensitive information. NOTE: the vendor has disputed this as described in https://github.com/mkdocs/mkdocs/issues/2601.] and https://github.com/nisdn/CVE-2021-40978/issues/1

Category

7.5
CVSS
Severity: High
CVSS 3.1 •
CVSS 2.0 •
EPSS 79.72% Top 5%
Third-Party Advisory github.com Third-Party Advisory github.com Third-Party Advisory github.com Third-Party Advisory github.com
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
https://github.com/mkdocs/mkdocs third party advisory
https://github.com/nisdn/CVE-2021-40978 third party advisory exploit
https://github.com/mkdocs/mkdocs/issues/2601 issue tracking third party advisory
https://github.com/nisdn/CVE-2021-40978/issues/1 issue tracking third party advisory

Frequently Asked Questions

What is the severity of CVE-2021-40978?
CVE-2021-40978 has been scored as a high severity vulnerability.
How to fix CVE-2021-40978?
To fix CVE-2021-40978, 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-2021-40978 being actively exploited in the wild?
It is possible that CVE-2021-40978 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~80% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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