Cross-site Scripting (XSS) Affecting jenkins package, versions <2.275-r0


Severity

Recommended
0.0
medium
0
10

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Threat Intelligence

EPSS
1.03% (60th percentile)

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  • Snyk IDSNYK-ALPINE316-JENKINS-2845453
  • published15 Jan 2021
  • disclosed13 Jan 2021

Introduced: 13 Jan 2021

CVE-2021-21608  (opens in a new tab)
CWE-79  (opens in a new tab)

How to fix?

Upgrade Alpine:3.16 jenkins to version 2.275-r0 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream jenkins package and not the jenkins package as distributed by Alpine. See How to fix? for Alpine:3.16 relevant fixed versions and status.

Jenkins 2.274 and earlier, LTS 2.263.1 and earlier does not escape button labels in the Jenkins UI, resulting in a cross-site scripting (XSS) vulnerability exploitable by attackers with the ability to control button labels.

CVSS Base Scores

version 3.1