Jenkins Nexus Platform Plugin Cross-Site Request Forgery vulnerability

Exploitation

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

CVSS

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

EPSS

• CVE-2023-50766: 0.45% estimated exploitation activity in the next 30 days; percentile 38.91 (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 Nexus Platform Plugin 3.18.0-03 and earlier does not perform permission checks in methods implementing form validation. This allows attackers with Overall/Read permission to send an HTTP request to an attacker-specified URL and parse the response as XML. Additionally, the plugin does not configure its XML parser to prevent XML external entity (XXE) attacks, so attackers can have Jenkins parse a crafted XML response that uses external entities for extraction of secrets from the Jenkins controller or server-side request forgery. Additionally, these form validation methods do not require POST requests, resulting in a cross-site request forgery (CSRF) vulnerability. Nexus Platform Plugin 3.18.1-01 configures its XML parser to prevent XML external entity (XXE) attacks. Additionally, POST requests and Overall/Administer permission are required for the affected HTTP endpoints.

Published by the source

13 Dec 2023, 18:31 UTC

Last modified by the source

18 Dec 2023, 23:39 UTC

Source last checked

26 Oct 2026, 16:21 UTC

1. Revision 1 · created · 26 Oct 2026

   Published from ghsa record GHSA-4gfc-72gw-v385

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# Patch Next advisory brief: CVE-2023-50766

Advisory: Jenkins Nexus Platform Plugin Cross-Site Request Forgery vulnerability
IDs: CVE-2023-50766, GHSA-4gfc-72gw-v385
Record: https://patchnext.com/advisories/cve-2023-50766 (revision 1, source checked 26 Oct 2026, 16:21 UTC)
Inventory: none attached. This brief comes from a public page and does not say whether any deployment is affected.
Severity: High (CVSS 7.1)
Exploitation: no confirmed exploitation recorded. Patch Next confirms exploitation only from CISA KEV.
Vendor response: Vendor fix available; fixed versions by package: org.sonatype.nexus.ci:nexus-jenkins-plugin 3.18.1-01. A vendor fix does not mean a deployment is fixed.

## Affected components
- Maven org.sonatype.nexus.ci:nexus-jenkins-plugin: affected < 3.18.1-01; fixed in 3.18.1-01

## Suggested inspection (read-only)
- Maven org.sonatype.nexus.ci:nexus-jenkins-plugin: check the installed version with your package manager.

## Supported action
Upgrade each affected component to a fixed version on its release line. For a transitive dependency, upgrade the parent package or add an override or constraint, then regenerate the lockfile. Redeploy every environment that ran an affected version.

## Required regression checks
- Run the test suite and a production build.
- Exercise the features that depend on org.sonatype.nexus.ci:nexus-jenkins-plugin.
- 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-4gfc-72gw-v385 (GitHub-reviewed advisory GHSA-4gfc-72gw-v385 lists affected ranges: Maven org.sonatype.nexus.ci:nexus-jenkins-plugin >=0 <3.18.1-01)

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