CVE-2020-2255: jenkins project jenkins blue ocean plugin Missing Authorization
Vulnerability summary
CVE-2020-2255 is a medium (CVSS 4.3) Missing Authorization vulnerability in jenkins project jenkins blue ocean plugin. EPSS estimates a 0.86% chance of exploitation in the next 30 days, higher than 58.7% of scored vulnerabilities.
Not severe (CVSS 4.3, network access); no exploitation reported by the 5 checked sources
Source freshness unavailable
How is this decided?Advisory lineage
Upstream 0 · Downstream 2Timeline
- 16-09-2020PublishedVulnerability first disclosed.
- 04-08-2024Last modifiedVulnerability information updated.
Description
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.
CVSS metrics
3 scores · 2 sources · 2 versions- OSV · MavenEcosystem advisory · calculated4.3MediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
EPSS trend
Probability
0.86%
Chance of exploitation in the next 30 days
Percentile
59%
Versus all other CVEs
30-day change
No change 0.00 pp
From 0.86% on 04-10-2026
Known exploited
Compare KEV catalogs
CISA KEVNot in the CISA KEV catalog.
ENISA CNWNot in the ENISA CNW catalog.
CIRCLNot in the CIRCL catalog.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Known conditions: network-reachable, low-privilege account, no user interaction (CVSS vector). Other conditions: not stated in public data.
Io.jenkins.blueocean1 product
- blueocean< 1.23.3
Jenkins1 product
- blue_ocean≤ 1.23.2
Jenkins project1 product
- jenkins blue ocean plugin≥ unspecified, ≤ 1.23.2
3 vendors · 3 products
References
4 links- www.openwall.com/lists/oss-security/2020/09/16/3Mailing ListX Refsource MLISTWEBThird Party Advisory
