Jenkins WebSphere Deployer Plugin missing permission check

Exploitation

No confirmed exploitation recorded. Patch Next marks exploitation only from CISA KEV.

CVSS

5.4 · CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N

EPSS

• CVE-2019-16559: 0.68% estimated exploitation activity in the next 30 days; percentile 52.29 (FIRST EPSS, 2026-11-03). This is a model estimate, not proof of exploitation or customer exposure.

As published by the source; long descriptions are shortened.

Jenkins WebSphere Deployer Plugin 1.6.1 and earlier does not perform permission checks in methods performing form validation. This allows users with Overall/Read access to perform connection tests, determine whether files with an attacker-specified path exist on the Jenkins controller file system, and obtain limited information about the Jenkins and plugin configuration based on the responses. The latter include the ability to set plugin configuration options. Additionally, these form validation methods do not require POST requests, resulting in a CSRF vulnerability. As of publication of this advisory, there is no fix.

Published by the source

24 May 2022, 17:03 UTC

Last modified by the source

27 Oct 2023, 17:43 UTC

Source last checked

26 Oct 2026, 16:15 UTC

1. Revision 1 · created · 26 Oct 2026

   Published from ghsa record GHSA-mxf8-grm7-mvqw

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# Patch Next advisory brief: CVE-2019-16559

Advisory: Jenkins WebSphere Deployer Plugin missing permission check
IDs: CVE-2019-16559, GHSA-mxf8-grm7-mvqw
Record: https://patchnext.com/advisories/cve-2019-16559 (revision 1, source checked 26 Oct 2026, 16:15 UTC)
Inventory: none attached. This brief comes from a public page and does not say whether any deployment is affected.
Severity: Medium (CVSS 5.4)
Exploitation: no confirmed exploitation recorded. Patch Next confirms exploitation only from CISA KEV.
Vendor response: Vendor response not established. A vendor fix does not mean a deployment is fixed.

## Affected components
- Maven org.jenkins-ci.plugins:websphere-deployer: affected <= 1.6.1

## Suggested inspection (read-only)
- Maven org.jenkins-ci.plugins:websphere-deployer: check the installed version with your package manager.

## Supported action
No complete vendor fix is recorded. Follow the primary source's mitigation guidance and check this record again before closing anything.

## Required regression checks
- Run the test suite and a production build.
- Exercise the features that depend on org.jenkins-ci.plugins:websphere-deployer.
- Repeat the inspection and confirm that only fixed versions remain installed.

## Rollback considerations
- Keep the previous lockfile and deployment artifact. Rolling back reinstates the vulnerable version, so apply any documented mitigation while you fix forward.

## Unresolved questions
- Which deployments run an affected version?
- Exploitation status can change. Check again before lowering the priority.
- Mark the work resolved only after the fixed version is verified in production.

## Sources
- Verified: https://github.com/advisories/GHSA-mxf8-grm7-mvqw (GitHub-reviewed advisory GHSA-mxf8-grm7-mvqw lists affected ranges: Maven org.jenkins-ci.plugins:websphere-deployer >=0 <=1.6.1)

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