CVE-2021-21619

Description

Jenkins Claim Plugin 2.18.1 and earlier does not escape the user display name, resulting in a stored cross-site scripting (XSS) vulnerability exploitable by attackers who are able to control the display names of Jenkins users, either via the security realm, or directly inside Jenkins.

Category

5.4
CVSS
Severity: Medium
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.15%
Vendor Advisory jenkins.io
Affected: Jenkins project Jenkins Claim Plugin
Published at:
Updated at:

References

Link Tags
https://www.jenkins.io/security/advisory/2021-02-24/#SECURITY-2188%20%281%29 vendor advisory
http://www.openwall.com/lists/oss-security/2021/02/24/3 third party advisory mailing list

Frequently Asked Questions

What is the severity of CVE-2021-21619?
CVE-2021-21619 has been scored as a medium severity vulnerability.
How to fix CVE-2021-21619?
To fix CVE-2021-21619, 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-2021-21619 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2021-21619 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.
What software or system is affected by CVE-2021-21619?
CVE-2021-21619 affects Jenkins project Jenkins Claim Plugin.
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