CVE-2021-21603

Medium

Description

Jenkins 2.274 and earlier, LTS 2.263.1 and earlier does not escape notification bar response contents, resulting in a cross-site scripting (XSS) vulnerability.

SeverityMedium
CVSS5.4
Exploit probability—
ProductJenkins
PublishedJan 13, 2021
First seenJan 13, 2021

How to fix

Update
  • org.jenkins-ci.main:jenkins-core2.275 or later

Affected products

ProductAffected versionsFixed in
jenkins jenkinsv ≤ 2.263.1, v ≤ 2.274—
org.jenkins-ci.main:jenkins-coreMavenv < 2.275, 2.263.2 ≤ v < 2.2752.275

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