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Not in CISA KEV
MEDIUM severity

CVE-2018-1000143 — ghprb

MEDIUM

CVE-2018-1000143 is a medium-severity (CVSS 6.7) Information Exposure vulnerability in org.jenkins-ci.plugins:ghprb. A fix is available for org.jenkins-ci.plugins:ghprb — see the affected versions and patch details below.

Jenkins GitHub Pull Request Builder Plugin

Also known asGHSA-876j-4q73-7f56
Published
Updated
Affected
1 pkg
Patched
1 / 1
Exploits
None indexed
Exploitation data as of Nov 6, 2026 · OSV.dev, NVD, FIRST.org (EPSS)

EPSS Exploitation Probability

via FIRST.org ↗
0.4%probability of exploitation in next 30 days
Lower Risk0.00%
Lower risk than most CVEs30th percentile — riskier than 30% of all scored CVEsHighest risk
0.00%0.29%0.58%0.87%0.0%0.4%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
☕org.jenkins-ci.plugins:ghprb

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

GitHub Pull Request Builder Plugin stored the webhook secret shared between Jenkins and GitHub in plain text. This allowed users with Jenkins controller local file system access and Jenkins administrators to retrieve the stored password. The latter could result in exposure of the passwords through browser extensions, cross-site scripting vulnerabilities, and similar situations. GitHub Pull Request Builder Plugin 1.32.1 and newer stores the webhook secret encrypted on disk.

Affected Packages

1 total 1 fixed
EcosystemPackageVulnerable rangeFix
☕Mavenorg.jenkins-ci.plugins:ghprball versions1.32.1org.jenkins-ci.plugins:ghprb:1.32.1

Affected Products

1 product · 1 configurations
Application
github pull request builderjenkins
≤ 1.39.0
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:ghprb, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.

  2. Fix

    Update org.jenkins-ci.plugins:ghprb to 1.32.1 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms CVE-2018-1000143 is resolved across your whole dependency graph.

  3. Workarounds

    Escape or sanitise the affected output on the server side rather than relying on client-side filtering, and add a Content-Security-Policy that blocks inline script execution so injected markup cannot run even if it reaches the page.

Frequently Asked Questions

GitHub Pull Request Builder Plugin stored the webhook secret shared between Jenkins and GitHub in plain text. This allowed users with Jenkins controller local file system access and Jenkins administrators to retrieve the stored password. The latter could result in exposure of the passwords through browser extensions, cross-site scripting vulnerabilities, and similar situations. GitHub Pull Request Builder Plugin 1.32.1 and newer stores the webhook secret encrypted on disk.
O3 Security · Impact-Aware SCA

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CVE-2018-1000143: ghprb XSS — Fixed in 1.32.1