CVE-2021-21647

mediumpriority · track · 18OT risk · elevatedEPSS 0.015 · 73 %ileEUUS

grimoire priorityP3 · Track

Exploitable?

—

no known exploitation

Likely / severe?

1.46% (73rd) EPSS

CVSS 4 · medium

Is it mine?

4 products

Check your exposure

Who says so?

4 sources

cnnvd · enisa_euvd · nvd · osv

EPSS · scored 2026-10-28

Jenkins CloudBees CD Plugin 1.1.21 and earlier does not perform a permission check in an HTTP endpoint, allowing attackers with Item/Read permission to schedule builds of projects without having Item/Build permission.

cvss

Technical severity, 0–10. One row per scoring source.

4.3

010

base score 0–10 · higher = more severe · hover a vector to decode

v2.04mediumAV:N/AC:L/Au:S/C:N/I:P/A:Nprimary · NVD / NIST USexploitability 8 · impact 2.9

v3.14.3mediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:Nprimary · NVD / NIST USexploitability 2.8 · impact 1.4

v3.14.3mediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:Nsecondary · OSV

v3.14mediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N/E:Usecondary · CVSS-BT (t0sche)

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-862US

affected products (4)

Products and version ranges known to be affected.

Jenkins Project Jenkins CloudBees CD Plugin≤ unspecified ≤1.1.21enisa_euvdEU
jenkins cloudbees cd≤ 1.1.21nvdUScpe:2.3:a:jenkins:cloudbees_cd:*:*:*:*:*:*:*:*
Maven org.jenkins-ci.plugins:electricflow< 1.1.18.1osvUSpkg:maven/org.jenkins-ci.plugins/electricflow
Maven org.jenkins-ci.plugins:electricflow1.1.19 → 1.1.22osvUSpkg:maven/org.jenkins-ci.plugins/electricflow

advisories (1)

Vendor and ecosystem advisories describing this.

GHSA-7rx6-4vwv-432gMissing permission check in Jenkins CloudBees CD Plugin allows scheduling builds2022-05-24ghsa · osvUS
Jenkins CloudBees CD Plugin does not perform a permission check in an HTTP endpoint. This allows attackers with Item/Read permission to schedule builds of projects without having Item/Build permission. Jenkins CloudBees CD Plugin requires Item/Build permission to schedule builds via its HTTP endpoint.

also known as (3)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd nvd osv NVD CVE.org MITRE

published 2021-04-21modified 2026-06-17

references (10)

External citations — patches, advisories, analysis.

scry

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