Auth bypass in Jenkins Warnings Next Generation
CVE-2021-21626
Jenkins Warnings Next Generation Plugin 8.4.4 and earlier does not perform a permission check in methods implementing form validation, allowing attackers with Item/Read permission but without Item/Workspace or Item/Configure permission to check whether attacker-specified file patterns match workspace contents.
Vulnerability class: Broken Access Control
Published · last modified .
CVSS v3 metric
CVSS v3 base score 4.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N.
EPSS exploit prediction
EPSS: 0.009 (56.8th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 57th percentile — 56.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.009 · newest: 0.009 · change: 0.000
Affected products
- Jenkins Warnings Next Generation
- Jenkins Project Warnings Next Generation Plugin — versions unspecified, 8.4.3.1
Weakness classification (CWE)
References
- www.jenkins.io/security/advisory/2021-03-18/ (Vendor Advisory)
- www.openwall.com/lists/oss-security/2021/03/18/5 (mailing-list, Third Party Advisory)
Frequently asked questions
- What is CVE-2021-21626?
- CVE-2021-21626 is a medium-severity vulnerability in Jenkins Warnings Next Generation, classified under Missing Authorization. CVSS score: 4.3/10. Published 2021-03-18.
- How severe is CVE-2021-21626?
- Medium severity. CVSS v3 base score is 4.3 out of 10.