CVE-2021-21641
CSRF vulnerability in Jenkins promoted builds Plugin
4.3
MEDIUM
CVSS 3.1
EPSS 0.47%
Description
Jenkins promoted builds Plugin 3.9 and earlier does not require POST requests for HTTP endpoints implementing promotion (regular, forced, and re-execute), resulting in cross-site request forgery (CSRF) vulnerabilities. These vulnerabilities allow attackers to promote builds. Jenkins promoted builds Plugin 3.9.1 requires POST requests for the affected HTTP endpoints. A security hardening since Jenkins 2.287 and LTS 2.277.2 prevents exploitation of this vulnerability.
How to fix CVE-2021-21641
To remediate CVE-2021-21641, upgrade the affected package to a fixed version below.
- —upgrade to 3.9.1 or later
Is CVE-2021-21641 being exploited?
Low — EPSS is 0.5%, meaning exploitation activity has not been observed at scale.
Affected packages (1)
- from 0, < 3.9.1
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | MEDIUM4.3 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N |