Medium severity5.4NVD Advisory· Published Feb 24, 2021· Updated Jun 17, 2026
CVE-2021-21619
CVE-2021-21619
Description
Jenkins Claim Plugin 2.18.1 and earlier does not escape the user display name, resulting 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.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected packages
Versions sourced from the GitHub Security Advisory.
| Package | Affected versions | Patched versions |
|---|---|---|
org.jenkins-ci.plugins:claimMaven | < 2.18.2 | 2.18.2 |
Affected products
2- Range: unspecified
Patches
Vulnerability mechanics
References
5- www.openwall.com/lists/oss-security/2021/02/24/3nvdMailing ListThird Party AdvisoryWEB
- github.com/advisories/GHSA-48hr-jg4p-w4p4ghsaADVISORY
- nvd.nist.gov/vuln/detail/CVE-2021-21619ghsaADVISORY
- www.jenkins.io/security/advisory/2021-02-24/nvdVendor Advisory
- www.jenkins.io/security/advisory/2021-02-24/ghsaWEB
News mentions
1- Jenkins Security Advisory 2021-02-24Jenkins Security Advisories · Feb 24, 2021