Jenkins build-metrics Plugin reflected cross-site scripting vulnerabilityGHSA-f8w9-66fp-3jgw
MEDIUMGHSA-f8w9-66fp-3jgw is a medium-severity (CVSS 6.1) Cross-site Scripting (XSS) vulnerability in org.jenkins-ci.plugins:build-metrics. 3 public exploit or proof-of-concept references are indexed, so weaponization risk is real. The records list no fixed version yet; check the vendor advisory below and apply the mitigations in the meantime.
EPSS Exploitation Probability
Probability of exploitation in the next 30 days, from FIRST.org EPSS.
How urgent is this, really
Where this sits among everything scored
Real-World Exposure
org.jenkins-ci.plugins:build-metricsReal-time download stats are indexed for npm and PyPI packages. This vulnerability affects Maven packages — download data is not available via public APIs for these ecosystems.
Description
Jenkins build-metrics Plugin does not properly escape the label query parameter, resulting in a reflected cross-site scripting vulnerability.
As of publication of this advisory, there is no fix.
Affected Packages
| Ecosystem | Package | Vulnerable range | Fix |
|---|---|---|---|
| ☕Maven | org.jenkins-ci.plugins:build-metrics | all versions | No fix |
Affected Products
build-metricsjenkinsResearch use only. For defensive security, authorized penetration testing, and academic research only. Never execute exploit code against systems without explicit written authorization.
Jenkins build-metrics plugin 1.3 - 'label' Cross-Site Scripting
by vesche · Nov 8, 2019
Detection & mitigation playbook
Open-source dependencyDetect
Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for org.jenkins-ci.plugins:build-metrics, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.
Remediation status
The records we use list no patched version of org.jenkins-ci.plugins:build-metrics for GHSA-f8w9-66fp-3jgw. Check the maintainer's advisory, and where your build allows, override or pin the dependency away from the vulnerable range.
Mitigate without a patch
Escape or sanitise the affected output on the server side rather than relying on client-side filtering, and add a Content-Security-Policy that blocks inline script execution so injected markup cannot run even if it reaches the page.
How to detect GHSA-f8w9-66fp-3jgw
A community-maintained Nuclei template exists for this CVE. You can scan for it directly:
nuclei -id ghsa-f8w9-66fp-3jgw -u https://target- Template
- Jenkins build-metrics 1.3 - Cross-Site Scripting
- Severity
- medium
- Impact
- Successful exploitation of this vulnerability could allow an attacker to execute arbitrary scripts in the context of the victim's browser, leading to potential data theft or unauthorized actions.
- Remediation
- Upgrade to a patched version of the Jenkins build-metrics plugin or apply the necessary fixes provided by the vendor.
Template by ProjectDiscovery nuclei-templates (madrobot), MIT licensed. View the full template. Scan only systems you are authorised to test.
Frequently Asked Questions
Is GHSA-f8w9-66fp-3jgw in your dependencies?
Find it across Maven, including transitive dependencies.