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MEDIUM severity

CVE-2020-2184 — cvs

MEDIUMFix: jenkinsci/cvs-plugin@8954b3a

CVE-2020-2184 is a medium-severity (CVSS 4.3) Cross-Site Request Forgery (CSRF) vulnerability in org.jenkins-ci.plugins:cvs. EPSS puts its 30-day exploitation probability at 44.5% (99th percentile). A fix is available for org.jenkins-ci.plugins:cvs — see the affected versions and patch details below.

CSRF vulnerability in Jenkins CVS Plugin

Also known asGHSA-63mw-hp3h-gc77
Published
Updated
Affected
1 pkg
Patched
1 / 1
Exploits
None indexed
Exploitation data as of Nov 3, 2026 · OSV.dev, NVD, FIRST.org (EPSS)

EPSS Exploitation Probability

via FIRST.org ↗
44.5%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%19.2%38.4%57.6%2.0%44.5%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:cvs

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

CVS Plugin 2.15 and earlier does not require POST requests in several HTTP endpoints, resulting in cross-site request forgery (CSRF) vulnerabilities. This allows attackers to create and manipulate tags, and to connect to an attacker-specified URL.

CVS Plugin 2.16 now requires POST requests for the affected HTTP endpoints.

Affected Packages

1 total 1 fixed
EcosystemPackageVulnerable rangeFix
☕Mavenorg.jenkins-ci.plugins:cvsall versions2.16org.jenkins-ci.plugins:cvs:2.16

Affected Products

1 product · 1 configurations
Application
current versions systemsjenkins
≤ 2.15
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:cvs, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.

  2. Fix

    Update org.jenkins-ci.plugins:cvs to 2.16 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms CVE-2020-2184 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

CVS Plugin 2.15 and earlier does not require POST requests in several HTTP endpoints, resulting in cross-site request forgery (CSRF) vulnerabilities. This allows attackers to create and manipulate tags, and to connect to an attacker-specified URL. CVS Plugin 2.16 now requires POST requests for the affected HTTP endpoints.
O3 Security · Impact-Aware SCA

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CVE-2020-2184: cvs CSRF — Fixed in 2.16