CVE-2021-42654

Description

SiteServer CMS < V5.1 is affected by an unrestricted upload of a file with dangerous type (getshell), which could be used to execute arbitrary code.

Category

9.8
CVSS
Severity: Critical
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.15%
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/siteserver/cms third party advisory product
https://github.com/siteserver/cms/issues/3236 issue tracking third party advisory
https://github.com/siteserver/cms/releases/download/siteserver-dev-v5.0.92/siteserver_install.zip third party advisory patch

Frequently Asked Questions

What is the severity of CVE-2021-42654?
CVE-2021-42654 has been scored as a critical severity vulnerability.
How to fix CVE-2021-42654?
To fix CVE-2021-42654, 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-2021-42654 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2021-42654 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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