Moderate severityNVD Advisory· Published Jan 13, 2021· Updated Aug 3, 2024
CVE-2021-21608
CVE-2021-21608
Description
Jenkins 2.274 and earlier, LTS 2.263.1 and earlier does not escape button labels in the Jenkins UI, resulting in a cross-site scripting (XSS) vulnerability exploitable by attackers with the ability to control button labels.
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.main:jenkins-coreMaven | < 2.275 | 2.275 |
org.jenkins-ci.main:jenkins-coreMaven | >= 2.263.2, < 2.275 | 2.275 |
Affected products
3- osv-coords2 versions
< 2.274.1+ 1 more
- (no CPE)range: < 2.274.1
- (no CPE)range: < 2.275
- Range: unspecified
Patches
Vulnerability mechanics
Generated on May 9, 2026. Inputs: CWE entries + fix-commit diffs from this CVE's patches. Citations validated against bundle.
References
4- github.com/advisories/GHSA-wv63-gwr9-5c55ghsaADVISORY
- nvd.nist.gov/vuln/detail/CVE-2021-21608ghsaADVISORY
- github.com/jenkinsci/jenkins/commit/8c451b08886561a914ef0c30cbb9d40ea33a9bbeghsaWEB
- www.jenkins.io/security/advisory/2021-01-13/ghsax_refsource_CONFIRMWEB
News mentions
1- Jenkins Security Advisory 2021-01-13Jenkins Security Advisories · Jan 13, 2021