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MEDIUM severity

Stored XSS vulnerability in Matrix Project PluginGHSA-vqwg-4v6f-h6x5

MEDIUMFix: jenkinsci/matrix-project-plugin@78cc605

GHSA-vqwg-4v6f-h6x5 is a medium-severity (CVSS 5.4) Cross-site Scripting (XSS) vulnerability in org.jenkins-ci.plugins:matrix-project. EPSS puts its 30-day exploitation probability at 81.8% (100th percentile). A fix is available for org.jenkins-ci.plugins:matrix-project — see the affected versions and patch details below.

Also known asCVE-2022-20615
Published
Updated
Affected
2 pkgs
Patched
2 / 2
Exploits
None indexed
Exploitation data as of Nov 10, 2026 · OSV.dev, NVD, FIRST.org (EPSS)

EPSS Exploitation Probability

via FIRST.org ↗
81.8%probability of exploitation in next 30 days
Very High Risk0.00%
Lower risk than most CVEs100th percentile — riskier than 100% of all scored CVEsHighest risk
0.00%33.3%66.7%100.0%2.9%81.8%May 26Sep 26Nov 26

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

2 pkgs affected
☕org.jenkins-ci.plugins:matrix-project☕org.jenkins-ci.plugins:matrix-project

Real-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 Matrix Project Plugin prior to 1.20 and 1.18.1 does not escape HTML metacharacters in node and label names, and label descriptions.

This results in a stored cross-site scripting (XSS) vulnerability exploitable by attackers with Agent/Configure permission.

Matrix Project Plugin 1.20 and 1.18.1 escapes HTML metacharacters in node and label names, and label descriptions.

Affected Packages

2 total 2 fixed
EcosystemPackageVulnerable rangeFix
☕Mavenorg.jenkins-ci.plugins:matrix-project≥ 1.19&&< 1.201.20org.jenkins-ci.plugins:matrix-project:1.20
☕Mavenorg.jenkins-ci.plugins:matrix-projectall versions1.18.1org.jenkins-ci.plugins:matrix-project:1.18.1

Affected Products

2 products · 2 configurations
Application
matrix projectjenkins
≤ 1.19
range
Application
communications cloud native core automated test suiteoracle
1 version
1.9.0

Detection & mitigation playbook

Open-source dependency

  1. Detect

    Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for org.jenkins-ci.plugins:matrix-project, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.

  2. Fix

    Update org.jenkins-ci.plugins:matrix-project to 1.20 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms GHSA-vqwg-4v6f-h6x5 is resolved across your whole dependency graph.

  3. Workarounds

    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.

Frequently Asked Questions

Jenkins Matrix Project Plugin prior to 1.20 and 1.18.1 does not escape HTML metacharacters in node and label names, and label descriptions. This results in a stored cross-site scripting (XSS) vulnerability exploitable by attackers with Agent/Configure permission. Matrix Project Plugin 1.20 and 1.18.1 escapes HTML metacharacters in node and label names, and label descriptions.
O3 Security · Impact-Aware SCA

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Stored XSS vulnerability in Matrix Project Plugin