CVE-2021-21619

Published: Feb 24, 2021Modified: Jun 17, 2026

5.4

Vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

Exploitability: 2.3 / Impact: 2.7

Source: NVD

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.

Affected (1)

Products: Jenkins: Claim

1 product

Configuration A

1 vulnerable

Vulnerable Software	Affected Versions
Jenkins Claim	Up to 2.18.1

Related CWEs

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.

References (4)

http://www.openwall.com/lists/oss-security/2021/02/24/3

Source: jenkinsci-cert@googlegroups.com

Mailing ListThird Party Advisory

https://www.jenkins.io/security/advisory/2021-02-24/#SECURITY-2188%20%281%29

Source: jenkinsci-cert@googlegroups.com

Vendor Advisory

http://www.openwall.com/lists/oss-security/2021/02/24/3

Source: af854a3a-2127-422b-91ae-364da2661108

Mailing ListThird Party Advisory

https://www.jenkins.io/security/advisory/2021-02-24/#SECURITY-2188%20%281%29

Source: af854a3a-2127-422b-91ae-364da2661108

Vendor Advisory

Timeline

No history available yet.