CVE-2021-21666

Description

Jenkins Kiuwan Plugin 1.6.0 and earlier does not escape query parameters in an error message for a form validation endpoint, resulting in a reflected cross-site scripting (XSS) vulnerability.

Category

6.1
CVSS
Severity: Medium
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.89% Top 30%
Vendor Advisory jenkins.io
Affected: Jenkins project Jenkins Kiuwan Plugin
Published at:
Updated at:

References

Link Tags
https://www.jenkins.io/security/advisory/2021-06-10/#SECURITY-2367 vendor advisory
http://www.openwall.com/lists/oss-security/2021/06/10/14 third party advisory mailing list

Frequently Asked Questions

What is the severity of CVE-2021-21666?
CVE-2021-21666 has been scored as a medium severity vulnerability.
How to fix CVE-2021-21666?
To fix CVE-2021-21666, 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-2021-21666 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2021-21666 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-2021-21666?
CVE-2021-21666 affects Jenkins project Jenkins Kiuwan Plugin.
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