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Not in CISA KEV
HIGH severity

CVE-2023-28669 — jacoco

HIGHFix: jenkinsci/jacoco-plugin@96386f9

CVE-2023-28669 is a high-severity (CVSS 8) Cross-site Scripting (XSS) vulnerability in org.jenkins-ci.plugins:jacoco. A fix is available for org.jenkins-ci.plugins:jacoco — see the affected versions and patch details below.

Jenkins JaCoCo Plugin vulnerable to Stored Cross-site Scripting

Published
Updated
Affected
1 pkg
Patched
1 / 1
Exploits
None indexed
Exploitation data as of Nov 6, 2026 · OSV.dev, NVD, FIRST.org (EPSS)

Exploitation Status

No confirmed exploitation observed yet

  • CISA’s own triage has not observed active exploitation or public proof-of-concept code for this CVE as of its last assessment.

Exploitation and automatability from CISA’s SSVC triage for CVE-2023-28669.

EPSS Exploitation Probability

via FIRST.org ↗
0.6%probability of exploitation in next 30 days
Lower Risk0.00%
Lower risk than most CVEs47th percentile — riskier than 47% of all scored CVEsHighest risk
0.00%4.15%8.30%12.5%9.7%0.6%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

1 pkg affected
☕org.jenkins-ci.plugins:jacoco

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 JaCoCo Plugin 3.3.2 and earlier does not escape class and method names shown on the UI, resulting in a stored cross-site scripting (XSS) vulnerability exploitable by attackers able to control input files for the 'Record JaCoCo coverage report' post-build action. Version 3.3.2.1 escapes class and method names shown on the UI.

Affected Packages

1 total 1 fixed
EcosystemPackageVulnerable rangeFix
☕Mavenorg.jenkins-ci.plugins:jacocoall versions3.3.2.1org.jenkins-ci.plugins:jacoco:3.3.2.1

Affected Products

1 product · 1 configurations
Application
jacocojenkins
≤ 3.3.2
range

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:jacoco, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.

  2. Fix

    Update org.jenkins-ci.plugins:jacoco to 3.3.2.1 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms CVE-2023-28669 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 JaCoCo Plugin 3.3.2 and earlier does not escape class and method names shown on the UI, resulting in a stored cross-site scripting (XSS) vulnerability exploitable by attackers able to control input files for the 'Record JaCoCo coverage report' post-build action. Version 3.3.2.1 escapes class and method names shown on the UI.
O3 Security · Impact-Aware SCA

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CVE-2023-28669: jacoco XSS — Fixed in 3.3.2.1