Medium

XSS vulnerability in Jenkins Claim Plugin

  • Disclosed: 24.05.2022
  • Updated: 11.10.2026 11:22

Jenkins Claim Plugin 2.18.1 and earlier does not escape the user display name shown in claims.

This results in a stored cross-site scripting (XSS) vulnerability exploitable by attackers who are able to control the display names of Jenkins users, either via the security realm, or directly inside Jenkins.

Everyone with a Jenkins account can change their own display name.\n\nClaim Plugin 2.18.2 escapes the user display name shown in claims.

Affected software

Click a technology to see all vulnerabilities affecting it.

PlatformPackageVulnerable versionsFixed in
Java / Kotlin (Maven) org.jenkins-ci.plugins:claim < 2.18.2 2.18.2

References

CVSS score 5.4/10
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
Weakness (CWE)
CWE-79
Platform
Java / Kotlin (Maven)
Package
org.jenkins-ci.plugins:claim
Disclosed
24.05.2022
Updated
11.10.2026 11:22

Sources and licenses

OSV / GitHub Advisory Database - GHSA-48hr-jg4p-w4p4 - CC BY 4.0

Vulnerability history: org.jenkins-ci.plugins:claim

All published vulnerabilities of this package (Java / Kotlin (Maven)), newest first. Shows whether this is a one-off slip or a package that needs watching.

Total entries
2
First → latest
06.2021 05.2022
Without a fix
0
Exploited in attacks
0

Severity breakdown

  • Medium 2

Disclosures per year

  1. 2021: 1
  2. 2022: 1
  3. 2023: 0
  4. 2024: 0
  5. 2025: 0
  6. 2026: 0
  1. XSS vulnerability in Jenkins Claim Plugin this entry
    Medium · 5.4 CVE-2021-21619 < 2.18.2 2.18.2
  2. Medium · 4.3 CVE-2021-21620 < 2.18.2 2.18.2

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