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TI-2021-04698 Aliases CVE-2021-21618GHSA-hg2w-3c4j-jjwm

Cross-site scripting in Jenkins Repository Connector Plugin

Priority MEDIUM 64CWE-79Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
Required
Attack complexity
Low
Impact type
Cross-site scripting
Confidentiality · integrity · availability
Low · Low · None
Fix status
Fixed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA and GitHub. Impact type from CWE-79.

Summary

Jenkins Repository Connector Plugin 2.0.2 and earlier does not escape parameter names and descriptions for past builds, resulting in a stored cross-site scripting (XSS) vulnerability exploitable by attackers with Item/Configure permission.

Why it matters now

EPSS 0.79479 99th percentileScored 2026-11-07
Fix Fixed org.jenkins-ci.plugins:repository-connector (Maven): 2.0.3

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
JenkinsJenkins Repository Connector Pluginup to 2.0.2—No fix listedCNA
—org.jenkins-ci.plugins:repository-connector (Maven)before 2.0.32.0.3Patch availableGHSA-hg2w-3c4j-jjwm
  • Jenkins Repository Connector Plugin VendorJenkins Affected up to 2.0.2 Fixed in — No fix listed CNA
  • org.jenkins-ci.plugins:repository-connector (Maven) Vendor— Affected before 2.0.3 Fixed in 2.0.3 Patch available GHSA-hg2w-3c4j-jjwm

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:jenkins:repository_connector:*:*:*:*:*:jenkins:*:*up to 2.0.2VulnerableJenkins
  • cpe:2.3:a:jenkins:repository_connector:*:*:*:*:*:jenkins:*:* Versions up to 2.0.2 Vulnerable ·Jenkins

Remediation

  • Fix · GHSA-hg2w-3c4j-jjwm org.jenkins-ci.plugins:repository-connector (Maven) Fixed in 2.0.3 Advisory →

Timeline

  1. 2026-10-02 Threatist record created from CVE-2021-21618
  2. 2026-10-03 Alias added: GHSA-hg2w-3c4j-jjwm
  3. 2026-10-07 Priority changed: HIGH → MEDIUM

References

Advisory 2

Other 1

  • TI-2019-15883 Insufficiently protected credentials in Jenkins Repository Connector Plugin CVSS 3.1HIGH 7.8
  • TI-2022-15110 Cross-site scripting in Jenkins Repository Connector Plugin CVSS 3.1MEDIUM 5.4
  • TI-2020-02026 Cleartext transmission of sensitive information in Jenkins Repository Connector Plugin CVSS 3.1MEDIUM 5.3
  • TI-2022-17119 Missing authorization in Jenkins Repository Connector Plugin CVSS 3.1MEDIUM 4.3
  • TI-2022-17118 Missing authorization in Jenkins Repository Connector Plugin CVSS 3.1MEDIUM 4.3

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences