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Maven
Not in CISA KEV
MEDIUM severity

GHSA-x3m6-vcp7-98mr is a medium-severity (CVSS 5.4) Cross-site Scripting (XSS) vulnerability in io.jenkins.plugins:rest-list-parameter. O3 Security confirms whether GHSA-x3m6-vcp7-98mr is actually reachable in your code before you act, and blocks exploitation at runtime until you patch.

Stored XSS vulnerability in Jenkins REST List Parameter Plugin

Also known asCVE-2021-21635
Published
May 24, 2022
Updated
Feb 16, 2024
Affected
1 pkg
Patched
1 / 1
Exploits
None indexed
Exploitation data as of Feb 16, 2024 · OSV.dev, NVD, FIRST.org (EPSS)

Real-World Exposure

1 pkg affected
io.jenkins.plugins:rest-list-parameter

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

Jenkins REST List Parameter Plugin 1.3.0 and earlier does not escape a parameter name reference in embedded JavaScript.

This results in a stored cross-site scripting (XSS) vulnerability exploitable by attackers with Job/Configure permission.

Jenkins REST List Parameter Plugin 1.3.1 no longer identifies a parameter using user-specified content.

Affected Packages

1 total 1 fixed
EcosystemPackageVulnerable rangeFix
Mavenio.jenkins.plugins:rest-list-parameterall versions1.3.1

Detection & mitigation playbook

Open-source dependency
  1. Detect

    Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for io.jenkins.plugins:rest-list-parameter. O3's reachability analysis confirms whether the vulnerable code path is actually invoked in your application, so you act on real exposure instead of every transitive match.

  2. Fix

    Update io.jenkins.plugins:rest-list-parameter to 1.3.1 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms GHSA-x3m6-vcp7-98mr is resolved across your whole dependency graph.

  3. Workarounds

    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.

  4. How O3 protects you

    O3 pinpoints whether GHSA-x3m6-vcp7-98mr is reachable in your code and exactly where to fix it, then blocks exploitation in production at runtime until the patched version is deployed.

Tailored to GHSA-x3m6-vcp7-98mr. Runtime protection reduces exposure until a permanent patch is applied and verified — it complements patching, it doesn't replace it.

Frequently Asked Questions

Jenkins REST List Parameter Plugin 1.3.0 and earlier does not escape a parameter name reference in embedded JavaScript. This results in a stored cross-site scripting (XSS) vulnerability exploitable by attackers with Job/Configure permission. Jenkins REST List Parameter Plugin 1.3.1 no longer identifies a parameter using user-specified content.
O3 Security · Impact-Aware SCA

Is GHSA-x3m6-vcp7-98mr in your dependencies?

O3 detects GHSA-x3m6-vcp7-98mr across Maven dependencies and uses function-level reachability to confirm whether the vulnerable code path is actually reachable — not just present. No false positives.

GHSA-x3m6-vcp7-98mr: rest-list-parameter… | O3 Security