CVE-2020-2255

mediumpriority · track · 17OT risk · elevatedEPSS 0.009 · 58 %ileEUUS

grimoire priorityP3 · Track

Exploitable?

—

no known exploitation

Likely / severe?

0.86% (58th) EPSS

CVSS 4 · medium

Is it mine?

5 products

Check your exposure

Who says so?

5 sources

cnnvd · enisa_euvd · nvd · osv

EPSS · scored 2026-10-27

A missing permission check in Jenkins Blue Ocean Plugin 1.23.2 and earlier allows attackers with Overall/Read permission to connect to an attacker-specified URL.

remediations

Vendor fix, mitigation, or workaround guidance, as published by each source.

A vendor fix is available.

Fixedjenkins-2-plugins-0:3.11.1603460090-1.el7.noarch as a component of Red Hat OpenShift Container Platform 3.11redhat_csaf
See the following documentation, which will be updated shortly for this release, for important instructions on how to upgrade your cluster and fully apply this asynchronous errata update: https://docs.openshift.com/container-platform/3.11/release_notes/ocp_3_11_release_notes.html This update is available via the Red Hat Network. Details on how to use the Red Hat Network to apply this update are available at https://access.redhat.com/articles/11258.
https://access.redhat.com/errata/RHSA-2020:5102
Fixedjenkins-2-plugins-0:3.11.1603460090-1.el7.src as a component of Red Hat OpenShift Container Platform 3.11redhat_csaf
See the following documentation, which will be updated shortly for this release, for important instructions on how to upgrade your cluster and fully apply this asynchronous errata update: https://docs.openshift.com/container-platform/3.11/release_notes/ocp_3_11_release_notes.html This update is available via the Red Hat Network. Details on how to use the Red Hat Network to apply this update are available at https://access.redhat.com/articles/11258.
https://access.redhat.com/errata/RHSA-2020:5102

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)

v3.14.3mediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:Nsecondary · Red Hat Product Security US

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-862USprimaryCWE-862USCWE-862US

affected products (5)

Products and version ranges known to be affected.

Jenkins Project Jenkins Blue Ocean Plugin≤ unspecified ≤1.23.2enisa_euvdEU
jenkins blue ocean≤ 1.23.2nvdUScpe:2.3:a:jenkins:blue_ocean:*:*:*:*:*:*:*:*
Maven io.jenkins.blueocean:blueocean< 1.23.3osvUSpkg:maven/io.jenkins.blueocean/blueocean
jenkins-2-plugins-0:3.11.1603460090-1.el7.noarch as a component of Red Hat OpenShift Container Platform 3.11all versionsfixedredhat_csafUS
jenkins-2-plugins-0:3.11.1603460090-1.el7.src as a component of Red Hat OpenShift Container Platform 3.11all versionsfixedredhat_csafUS

advisories (2)

Vendor and ecosystem advisories describing this.

RHSA-2020:5102Red Hat Security Advisory: OpenShift Container Platform 3.11.318 jenkins-2-plugins security update2020-11-17csaf · redhat_csafUS
An update for jenkins-2-plugins is now available for Red Hat OpenShift Container Platform 3.11. Red Hat Product Security has rated this update as having a security impact of Moderate. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.
GHSA-vc7g-4269-f7hwMissing permission check in Blue Ocean Plugin2022-05-24ghsa · osvUS
### Updated 2020-09-16 This entry previously misidentified the problematic behavior. The HTTP request itself is legitimate, but only authorized users should be able to perform it. ### Original Description Blue Ocean Plugin 1.23.2 and earlier does not perform permission checks in several HTTP endpoints implementing connection tests. This allows attackers with Overall/Read permission to connect to an attacker-specified URL. Blue Ocean Plugin 1.23.3 requires Item/Create permission to perform these connection tests.

also known as (3)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd nvd osv redhat_csaf NVD CVE.org MITRE

published 2020-09-16modified 2026-06-17

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+11476 more

references (15)

External citations — patches, advisories, analysis.

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