Cross-site Scripting (XSS) Affecting jenkins package, versions <0:2.263.3.1612434510-1.el8


Severity

Recommended
high

Based on Red Hat Enterprise Linux security rating.

Threat Intelligence

EPSS
0.05% (24th percentile)

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  • Snyk IDSNYK-RHEL8-JENKINS-4399192
  • published26 Mar 2023
  • disclosed13 Jan 2021

Introduced: 13 Jan 2021

CVE-2021-21611  (opens in a new tab)
CWE-79  (opens in a new tab)

How to fix?

Upgrade RHEL:8 jenkins to version 0:2.263.3.1612434510-1.el8 or higher.
This issue was patched in RHSA-2021:0423.

NVD Description

Note: Versions mentioned in the description apply only to the upstream jenkins package and not the jenkins package as distributed by RHEL. See How to fix? for RHEL:8 relevant fixed versions and status.

Jenkins 2.274 and earlier, LTS 2.263.1 and earlier does not escape display names and IDs of item types shown on the New Item page, resulting in a stored cross-site scripting (XSS) vulnerability exploitable by attackers able to specify display names or IDs of item types.

CVSS Scores

version 3.1