vulnerability

Jenkins Advisory 2021-10-06: CVE-2021-21684: Stored XSS vulnerability in Git Plugin

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Severity

CVSS

(AV:N/AC:M/Au:N/C:N/I:P/A:N)

Published

Oct 6, 2021

Added

Dec 2, 2021

Modified

Mar 27, 2026

Description

Jenkins Git Plugin 4.8.2 and earlier does not escape the Git SHA-1 checksum parameters provided to commit notifications when displaying them in a build cause, resulting in a stored cross-site scripting (XSS) vulnerability.

Solutions

jenkins-lts-upgrade-2_303_2jenkins-upgrade-2_315

References

CVE-2021-21684
https://attackerkb.com/topics/CVE-2021-21684
CWE-116
EUVD-EUVD-2022-3953
https://euvd.enisa.europa.eu/vulnerability/EUVD-2022-3953
https://jenkins.io/security/advisory/2021-10-06/

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