CVE-2021-21630
Stored XSS vulnerability in Jenkins Extra Columns Plugin
5.4
MEDIUM
CVSS 3.1
EPSS 1.3%
Description
Jenkins Extra Columns Plugin 1.22 and earlier does not escape parameter values in the build parameters column. This results in a stored cross-site scripting (XSS) vulnerability exploitable by attackers with Job/Configure permission. Additionally, a view containing such a job needs to be configured with the build parameters column, or the attacker also needs View/Configure permission. Jenkins Extra Columns Plugin 1.23 escapes parameter values in the build parameters column.
How to fix CVE-2021-21630
To remediate CVE-2021-21630, upgrade the affected package to a fixed version below.
- —upgrade to 1.23 or later
Is CVE-2021-21630 being exploited?
Low — EPSS is 1.3%, meaning exploitation activity has not been observed at scale.
Affected packages (1)
- from 0, < 1.23
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | MEDIUM5.4 | CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N |