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CVE-2020-2255

14
FAUCET Score

CVE-2020-2255 is a missing permission check vulnerability in Jenkins Blue Ocean Plugin versions 1.23.2 and earlier. It allows authenticated attackers with read permissions to connect to an arbitrary URL. This vulnerability has a CVSS score of 4.3 (Medium), indicating low attack complexity and no impact on confidentiality or availability, but potential for integrity compromise. There is no evidence of active exploitation, publicly available exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
<= 1.23.2CPE matchmatch criteria
cpe:2.3:a:jenkins:blue_ocean:*:*:*:*:*:jenkins:*:*

CVSS Data

CVSS version used by this source: 3.1

4.3MEDIUM

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
LOW
Availability Impact
NONE
Exploitability Score
2.8
Impact Score
1.4
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.85%
Probability of exploitation in next 30 days
EPSS Percentile
54.4%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0085 is in the 66th percentile among its peer group of 21,977 CVEs.

Social Chatter

No social media mentions found for this CVE.

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (4)

mavenpatch availablevia ghsa
Product: io.jenkins.blueocean:blueoceanFixed in: 1.23.3
redhatpatch availablevia redhat_api
Product: Red Hat OpenShift Container Platform 3.11Fixed in: jenkins-2-plugins-0:3.11.1603460090-1.el7
View patch
redhatpatch availablevia redhat_api
Product: Red Hat OpenShift Container Platform 4.6Fixed in: jenkins-2-plugins-0:4.6.1601368321-1.el8
View patch
jenkinsvendor investigatingvia nvd_reference
View patch

Vendor Advisories (2)

mavenGHSA-vc7g-4269-f7hwmedium

Missing permission check in Blue Ocean Plugin

May 24, 2022
redhatCVE-2020-2255Moderate

jenkins-2-plugins/blueocean: Blue Ocean Plugin does not perform permission checks in several HTTP endpoints implementing connection tests.

Sep 16, 2020

References

jenkins.io / security/advisory/2020-09-16
Vendor Advisory
openwall.com / lists/oss-security/2020/09/16/3
Third Party Advisory