CVE-2023-27903: jenkins Incorrect Authorization
Vulnerability summary
CVE-2023-27903 is a medium (CVSS 4.4) Incorrect Authorization vulnerability in jenkins. EPSS estimates a 0.24% chance of exploitation in the next 30 days, higher than 15.6% of scored vulnerabilities.
Not severe (CVSS 4.4, local access); no exploitation reported by the 5 checked sources
Source freshness unavailable
How is this decided?Advisory lineage
Upstream 0 · Downstream 9 · 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 file parameter through the CLI, potentially allowing attackers with access to the Jenkins controller file system to read and write the file before it is used.
CVSS metrics
3 scores · 3 sources · 1 version- OSV · MavenEcosystem advisory · calculated3.6LowCVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:NDiffers
- NVDNIST4.4MediumCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N
EPSS trend
Probability
0.24%
Chance of exploitation in the next 30 days
Percentile
16%
Versus all other CVEs
30-day change
No change 0.00 pp
From 0.24% 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
