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Not in CISA KEV
HIGH severity

CVE-2023-32986 — file-parameters

HIGHFix: jenkinsci/file-parameters-plugin@4b7b29d

CVE-2023-32986 is a high-severity (CVSS 8.8) CWE-732 vulnerability in io.jenkins.plugins:file-parameters. EPSS puts its 30-day exploitation probability at 60.7% (99th percentile). A fix is available for io.jenkins.plugins:file-parameters — see the affected versions and patch details below.

Jenkins File Parameter Plugin arbitrary file write vulnerability

Published
Updated
Affected
1 pkg
Patched
1 / 1
Exploits
None indexed
Exploitation data as of Nov 3, 2026 · OSV.dev, NVD, FIRST.org (EPSS)

Exploitation Status

No confirmed exploitation observed yet

  • A successful exploit gives an attacker total control of the affected component, not partial access.
  • CISA’s own triage has not observed active exploitation or public proof-of-concept code for this CVE as of its last assessment.

Exploitation and automatability from CISA’s SSVC triage for CVE-2023-32986.

EPSS Exploitation Probability

via FIRST.org ↗
60.7%probability of exploitation in next 30 days
High Risk0.00%
Lower risk than most CVEs99th percentile — riskier than 99% of all scored CVEsHighest risk
0.00%27.1%54.2%81.3%11.1%60.7%May 26Sep 26Nov 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
☕io.jenkins.plugins:file-parameters

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 File Parameter Plugin 285.v757c5b_67a_c25 and earlier does not restrict the name (and resulting uploaded file name) of Stashed File Parameters.

This allows attackers with Item/Configure permission to create or replace arbitrary files on the Jenkins controller file system with attacker-specified content.

File Parameter Plugin 285.287.v4b_7b_29d3469d restricts the name (and resulting uploaded file name) of Stashed File Parameters.

Affected Packages

1 total 1 fixed
EcosystemPackageVulnerable rangeFix
☕Mavenio.jenkins.plugins:file-parametersall versions285.287.v4bio.jenkins.plugins:file-parameters:285.287.v4b

Affected Products

1 product · 1 configurations
Application
file parametersjenkins
≤ 285.287.v4b_7b_29d3469d
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 io.jenkins.plugins:file-parameters, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.

  2. Fix

    Update io.jenkins.plugins:file-parameters to 285.287.v4b or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms CVE-2023-32986 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.

Frequently Asked Questions

Jenkins File Parameter Plugin 285.v757c5b_67a_c25 and earlier does not restrict the name (and resulting uploaded file name) of Stashed File Parameters. This allows attackers with Item/Configure permission to create or replace arbitrary files on the Jenkins controller file system with attacker-specified content. File Parameter Plugin 285.287.v4b_7b_29d3469d restricts the name (and resulting uploaded file name) of Stashed File Parameters.
O3 Security · Impact-Aware SCA

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CVE-2023-32986: file-parameters — Fixed in 285.287.v4b