CVE-2021-40906

Description

CheckMK Raw Edition software (versions 1.5.0 to 1.6.0) does not sanitise the input of a web service parameter that is in an unauthenticated zone. This Reflected XSS allows an attacker to open a backdoor on the device with HTML content and interpreted by the browser (such as JavaScript or other client-side scripts) or to steal the session cookies of a user who has previously authenticated via a man in the middle. Successful exploitation requires access to the web service resource without authentication.

Category

6.1
CVSS
Severity: Medium
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.26%
Third-Party Advisory github.com
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
http://checkmk.com product
https://github.com/Edgarloyola/CVE-2021-40906 third party advisory

Frequently Asked Questions

What is the severity of CVE-2021-40906?
CVE-2021-40906 has been scored as a medium severity vulnerability.
How to fix CVE-2021-40906?
To fix CVE-2021-40906, 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-2021-40906 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2021-40906 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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