CVE-2021-21603

MEDIUM

Jenkins < 2.263.1, < 2.274 - Cross-Site Scripting in Notification Bar

Title source: llm
STIX 2.1

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.

References (1)

Core 1
Core References

Scores

CVSS v3 5.4
EPSS 0.0032
EPSS Percentile 55.0%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

Details

CWE
CWE-79
Status published
Products (3)
jenkins/jenkins < 2.263.1
jenkins/jenkins < 2.274
org.jenkins-ci.main/jenkins-core 0 - 2.275Maven
Published Jan 13, 2021
Tracked Since Feb 18, 2026