Build EnvironmentApplication · Jenkins
CVE-2019-10395
Official description Straight from the sourceThe vendor's or NVD's own wording, published unedited. Authoritative, but often terse — it says what broke, rarely what to do.
NVD · uneditedJenkins Build Environment Plugin 1.6 and earlier did not escape variables shown on its views, resulting in a cross-site scripting vulnerability in Jenkins 2.145, 2.138.1, or older, exploitable by users able to change various job/build properties.
Technical summary Written by usOur analysis, written from the advisory, the CVSS vector and the affected-version data. It adds context the advisory leaves out, and never invents facts that are not in the source.
dbcve analysis · high confidenceThe Jenkins Build Environment Plugin versions 1.6 and earlier contains a stored cross-site scripting (XSS) vulnerability. The plugin fails to properly escape variables displayed in its views, allowing malicious script injection through job or build properties that get rendered unescaped in the UI.
Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.
Affected products & versions What the vendor confirmedThe version ranges the vendor confirmed as vulnerable. If your version sits inside a range here, treat yourself as exposed until you have upgraded.
NVD · CPE data
Build EnvironmentApplication
<= 1.6CVSS breakdown How the score is builtThe industry scoring standard. It rates how the flaw is reached, what it takes to exploit, and what an attacker gains — the score is derived from those, not the other way round.
From the vector- Attack vector
- Network
- Complexity
- Low
- Privileges
- Low
- User interaction
- Required
- Scope
- Changed
- Confidentiality
- Low
- Integrity
- Low
- Availability
- None
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
Am I affected? How to checkSteps we derive from the advisory and the affected-version data, so you can decide whether this CVE reaches your setup. They are a guide, not a scan — your own configuration is the authority.
dbcve checksWork through these to decide whether this CVE applies to you.
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Verify Build Environment plugin is installedNavigate to Jenkins > Manage Jenkins > Manage Plugins > Installed tab, or use the Jenkins CLI: java -jar jenkins-cli.jar list-pluginsAffected if The Build Environment plugin appears in the installed plugins list
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Check plugin versionIn Manage Jenkins > Manage Plugins > Installed, find the Build Environment plugin and note the version number shown in the Version columnAffected if The installed version is 1.6 or earlier
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Identify jobs using Build Environment pluginReview job configurations that enable 'Build Environment' section, or search for jobs that reference plugin-provided environment variables or featuresAffected if Any job configuration includes Build Environment plugin settings that display variables in the UI
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Inspect rendered build output for unescaped contentView completed builds of jobs using the Build Environment plugin. Check build pages for any displayed environment variables, build properties, or output that may contain special characters rendered as raw HTMLAffected if Any variable content appears as unescaped HTML or allows script execution when viewed in the build page
A user is affected if the Build Environment plugin version 1.6 or earlier is installed AND jobs using the plugin display environment variables or build properties in the Jenkins UI.
Generated from the published advisory. Verify against your own configuration.
Remediation Closing itWhat it takes to close this. Where a vendor fix exists we point at it; where none exists we say so plainly, and can build one. Effort estimates are scoped from the advisory, not from your codebase.
From vendor dataUpgrade the Jenkins Build Environment Plugin to version 1.7 or later, which contains proper input sanitization. For older Jenkins core versions (2.145, 2.138.1, or older), also consider upgrading Jenkins to a supported version.
Fix this in Build Environment
Scoped from the published advisory
- Consultation2.0 h
- Implementation1.0 h
- Testing3.0 h
- Review / QA1.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $1,936.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2019-10395 — or any other known-vulnerable package — straight from your lock files. Free and open source; it runs locally and uploads nothing.
References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.
Primary sourcesPractitioner notes
ContributedPeer-ranked notes from engineers who’ve handled CVE-2019-10395 in production — separate from our analysis above.
The advisory tells you what broke. It rarely tells you what actually worked. If you’ve dealt with this one, that detail is what the next engineer is searching for.
- The version that genuinely resolved it — not the one the vendor claimed
- A config change or rule that shut the vector down
- A gotcha in the upgrade path that cost you an afternoon
No notes yet
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- Verified mitigations, workarounds, and config changes
- Version or environment caveats, and links to real fixes
- No weaponised exploit code, or anything meant to cause harm
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