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☕ Maven
Not in CISA KEV
HIGH severity

CVE-2020-2108 — websphere-deployer

HIGH

CVE-2020-2108 is a high-severity (CVSS 7.6) XML External Entity (XXE) 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.

XXE vulnerability in Jenkins WebSphere Deployer Plugin

Also known asGHSA-f5wx-w2f9-82gh
Published
Updated
Affected
1 pkg
Patched
See advisory
Exploits
None indexed
Exploitation data as of Oct 30, 2026 · OSV.dev, NVD, FIRST.org (EPSS)

EPSS Exploitation Probability

via FIRST.org ↗
0.9%probability of exploitation in next 30 days
Lower Risk0.00%
Lower risk than most CVEs60th percentile — riskier than 60% of all scored CVEsHighest risk
0.00%0.47%0.94%1.40%0.1%0.9%Apr 26Aug 26Oct 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

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.

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 CVE-2020-2108. 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

    If you can't upgrade right away: gate or disable the affected feature, validate untrusted input at the boundary, and avoid passing attacker-controlled data into the vulnerable path. O3's runtime protection blocks exploitation in production as an interim safeguard until the upgrade lands.

Frequently Asked Questions

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.
O3 Security · Impact-Aware SCA

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CVE-2020-2108: websphere-deployer XXE (High 7.6)