CVE-2023-27899: jenkins Incorrect Authorization
Vulnerability summary
CVE-2023-27899 is a high (CVSS 7.0) Incorrect Authorization vulnerability in jenkins. EPSS estimates a 0.23% chance of exploitation in the next 30 days, higher than 14.2% of scored vulnerabilities.
Not severe (CVSS 7, local access); no exploitation reported by the 5 checked sources
Source freshness unavailable
How is this decided?Advisory lineage
Upstream 0 · Downstream 2 · Related 2Timeline
- 08-03-2023PublishedVulnerability first disclosed.
- 28-02-2025Last modifiedVulnerability information updated.
Description
Jenkins 2.393 and earlier, LTS 2.375.3 and earlier creates a temporary file in the default temporary directory with the default permissions for newly created files when uploading a plugin for installation, potentially allowing attackers with access to the Jenkins controller file system to read and write the file before it is used, potentially resulting in arbitrary code execution.
CVSS metrics
3 scores · 3 sources · 1 version- OSV · MavenEcosystem advisory · calculated7.0HighCVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
- NVDNIST7.0HighCVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
EPSS trend
Probability
0.23%
Chance of exploitation in the next 30 days
Percentile
14%
Versus all other CVEs
30-day change
No change 0.00 pp
From 0.23% 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: local access, low-privilege account, no user interaction (CVSS vector). Other conditions: not stated in public data.
Jenkins1 product
- jenkins< 2.375.4 | < 2.394
Org.jenkins-ci.main1 product
- jenkins-core≥ 2.376, < 2.387.1 | < 2.375.4 | ≥ 2.388, < 2.394
2 vendors · 2 products
