What is CVE-2021-21616?

CVE-2021-21616 is a medium-severity vulnerability in Jenkins Active_choices, classified under Cross-site Scripting. CVSS score: 4.6/10. Published 2021-02-24.

How severe is CVE-2021-21616?

Medium severity. CVSS v3 base score is 4.6 out of 10.

XSS in Jenkins Active_choices

CVE-2021-21616

Jenkins Active Choices Plugin 2.5.2 and earlier does not escape reference parameter values, resulting in a stored cross-site scripting (XSS) vulnerability exploitable by attackers with Job/Configure permission.

Vulnerability class: XSS (Cross-Site Scripting)

EPSS: 0.788 (99.6th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 4.6 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:N.

Affected products

Jenkins Active_choices
Jenkins Project Active Choices Plugin — versions unspecified

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

jenkinsci-cert@googlegroups.com (x_refsource_CONFIRM, Vendor Advisory)
jenkinsci-cert@googlegroups.com (mailing-list, x_refsource_MLIST, Mailing List, Third Party Advisory)

Frequently asked questions

What is CVE-2021-21616?: CVE-2021-21616 is a medium-severity vulnerability in Jenkins Active_choices, classified under Cross-site Scripting. CVSS score: 4.6/10. Published 2021-02-24.
How severe is CVE-2021-21616?: Medium severity. CVSS v3 base score is 4.6 out of 10.