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Extended Choice ParameterApplication · Jenkins

CVE-2022-27202

MEDIUM · 5.4 CVSS v3.1 Published 2022-03-15
Fix available
A fix is available. Upgrade to after 346.vd87693c5a_86c or later.
See remediation →
58/100
Remediation priority · Elevated
Remotely reachable

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 · unedited
Jenkins Extended Choice Parameter Plugin 346.vd87693c5a_86c and earlier does not escape the value and description of extended choice parameters of radio buttons or check boxes type, resulting in a stored cross-site scripting (XSS) vulnerability exploitable by attackers with Item/Configure permission.

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 confidence

The Jenkins Extended Choice Parameter Plugin fails to properly escape the value and description fields for extended choice parameters configured as radio buttons or check boxes. This allows an attacker with Item/Configure permission to inject malicious JavaScript code into parameter configurations, which executes when other users view the job configuration or build pages.

MitigationUpdate the Extended Choice Parameter Plugin to the patched version (347.v0d5f45d1f0a_ or later). Review and sanitize existing job configurations that use extended choice parameters with radio buttons or check boxes types.

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
Extended Choice ParameterApplication
Affected:<= 346.vd87693c5a_86c

CVSS 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 checks

Work through these to decide whether this CVE applies to you.

  1. Check Extended Choice Parameter Plugin version
    Navigate to Manage Jenkins > Manage Plugins > Installed tab and locate 'Extended Choice Parameter Plugin', or run: Jenkins.instance.pluginManager.getPlugin("extended-choice-parameter")?.version
    Affected if Version is 346.vd87693c5a_86c or lower (unpatched)
  2. Identify jobs using extended choice parameters
    Use Jenkins script console: Jenkins.instance.items.each { job -> job.allActions.each { a -> if (a instanceof hudson.model.ParametersDefinitionProperty) { a.parameterDefinitions.each { p -> if (p.class.name.contains("ExtendedChoiceParameterDefinition")) { println(job.fullName + ": " + p.name) } } } } }
    Affected if Any jobs have extended choice parameters defined
  3. Verify parameter type is radio buttons or check boxes
    Inspect job config.xml files or use: Jenkins.instance.getItemByFullName("JOB_NAME").getProperty(hudson.model.ParametersDefinitionProperty).parameterDefinitions.find { it.name == "PARAM_NAME" }.type
    Affected if Parameter type is 'Radio Buttons' or 'Check Boxes'
  4. Inspect value and description fields for injected scripts
    Review the job configuration XML (config.xml) for the extended choice parameter, examining the 'value' and 'description' fields for script tags, event handlers, or unusual encoded content
    Affected if Fields contain unsanitized HTML, script tags, or JavaScript event handlers

User is affected if the Extended Choice Parameter Plugin version is 346.vd87693c5a_86c or lower AND there are jobs using extended choice parameters configured as radio buttons or check boxes with unsanitized value/description fields.

Generated from the published advisory. Verify against your own configuration.

Check your environment

Paste your version and any relevant configuration and it will be compared against the affected criteria above. Do not include secrets or credentials.

AI-assisted, checked against the advisory. Informational, not a guarantee.

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.

dbcve · scoped
Upgrade available Upgrade to a release after 346.vd87693c5a_86c
Interim mitigation

Update the Extended Choice Parameter Plugin to the patched version (347.v0d5f45d1f0a_ or later). Review and sanitize existing job configurations that use extended choice parameters with radio buttons or check boxes types.

Recommended fix Moderate confidence

Upgrade to the latest available version of Extended Choice Parameter plugin (version newer than 346.vd87693c5a_86c)

  1. 1. Navigate to Manage Jenkins > Manage Plugins
  2. 2. Go to the 'Installed' tab and locate the Extended Choice Parameter plugin
  3. 3. Check if an update is available for the Extended Choice Parameter plugin
  4. 4. If an update is available, click 'Update' to install the latest version
  5. 5. After updating, restart Jenkins if required
  6. 6. Verify the plugin version is newer than 346.vd87693c5a_86c
  7. 7. Test that extended choice parameters with radio buttons or checkboxes render correctly and that the description and value fields are properly escaped
Caveat Review release notes for any breaking changes between your current version and the new version

Generated from the published advisory — verify against the referenced sources before acting.

Fix this in Extended Choice Parameter Scoped from the published advisory
  • Consultation2.0 h
  • Implementation1.0 h
  • Testing4.0 h
  • Review / QA2.0 h
9.0 hours of engineering $1,540
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An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $2,464.

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References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.

Primary sources

Practitioner notes

Contributed

Peer-ranked notes from engineers who’ve handled CVE-2022-27202 in production — separate from our analysis above.

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What this is

A place for practitioners to share what actually worked: a mitigation you’ve tested, a configuration change, a version- or environment-specific caveat, or a link to a verified patch. The most useful notes rise to the top as peers upvote them, so the signal stays high.

What belongs here
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  • Version or environment caveats, and links to real fixes
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