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MEDIUM severity

Jenkins WebSphere Deployer Plugin missing permission checkGHSA-mxf8-grm7-mvqw

MEDIUM

GHSA-mxf8-grm7-mvqw is a medium-severity (CVSS 5.4) Incorrect Default Permissions vulnerability in org.jenkins-ci.plugins:websphere-deployer. The records list no fixed version yet; check the vendor advisory below and apply the mitigations in the meantime.

Also known asCVE-2019-16559
Published
Updated
Affected
1 pkg
Patched
See advisory
Exploits
None indexed
Exploitation data as of Nov 6, 2026 · OSV.dev, NVD, FIRST.org (EPSS)

EPSS Exploitation Probability

via FIRST.org ↗
0.7%probability of exploitation in next 30 days
Lower Risk0.00%
Lower risk than most CVEs52th percentile — riskier than 52% of all scored CVEsHighest risk
0.00%0.39%0.78%1.18%0.0%0.7%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:websphere-deployer

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 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.

Affected Packages

1 total
EcosystemPackageVulnerable rangeFix
☕Mavenorg.jenkins-ci.plugins:websphere-deployerall versionsNo fix

Affected Products

1 product · 1 configurations
Application
websphere deployerjenkins
≤ 1.6.1
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:websphere-deployer, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.

  2. Remediation status

    The records we use list no patched version of org.jenkins-ci.plugins:websphere-deployer for GHSA-mxf8-grm7-mvqw. Check the maintainer's advisory, and where your build allows, override or pin the dependency away from the vulnerable range.

  3. Mitigate without a patch

    Close the privilege gap rather than the entry point: audit which accounts, roles and service identities can reach the affected operation, drop the component to the least privilege it actually needs, and review file and directory permissions created by earlier installs — a default left in place is what makes this reachable.

Frequently Asked Questions

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 thi
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