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High, CVSS 7.6

XXE vulnerability in Jenkins WebSphere Deployer Plugin

CVE-2020-2108GHSA-f5wx-w2f9-82gh

What to do

Vendor response not established. Follow the primary source's mitigation guidance and check back for a fix.

This page has no inventory attached, so it cannot say whether you are affected. A vendor fix is not proof that your deployment is fixed.

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Affected packages

  • Maven org.jenkins-ci.plugins:websphere-deployer

    Affected
    <= 1.6.1
    Fixed in
    no fixed version recorded

Sources

Severity and exploitation
Exploitation
No confirmed exploitation recorded. Patch Next marks exploitation only from CISA KEV.
CVSS
7.6 · CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:L
EPSS
  • CVE-2020-2108: 0.90% estimated exploitation activity in the next 30 days; percentile 59.85 (FIRST EPSS, 2026-11-03). This is a model estimate, not proof of exploitation or customer exposure.
Source description

As published by the source; long descriptions are shortened.

WebSphere Deployer Plugin 1.6.1 and earlier does not configure the XML parser to prevent XML external entity (XXE) attacks. This could be exploited by a user with Job/Configure permissions to upload a specially crafted war file containing a WEB-INF/ibm-web-ext.xml which is parsed by the plugin.

Dates and revisions
Published by the source
Last modified by the source
Source last checked
  1. Revision 1 · created ·

    Published from ghsa record GHSA-f5wx-w2f9-82gh

Agent brief

Preview the exact text before you copy it. Commands are read-only suggestions; review them before running anything.

# Patch Next advisory brief: CVE-2020-2108

Advisory: XXE vulnerability in Jenkins WebSphere Deployer Plugin
IDs: CVE-2020-2108, GHSA-f5wx-w2f9-82gh
Record: https://patchnext.com/advisories/cve-2020-2108 (revision 1, source checked 26 Oct 2026, 16:01 UTC)
Inventory: none attached. This brief comes from a public page and does not say whether any deployment is affected.
Severity: High (CVSS 7.6)
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-f5wx-w2f9-82gh (GitHub-reviewed advisory GHSA-f5wx-w2f9-82gh lists affected ranges: Maven org.jenkins-ci.plugins:websphere-deployer >=0 <=1.6.1)

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