CVE-2021-21616 json
Stored XSS vulnerability in Jenkins Active Choices Plugin
published 5y ago modified 4mo ago also GHSA-4f6x-g5vh-8jm5 , EUVD-2022-2364
- cvss
- 4.6
- version 3.1, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 76.2%
- EPSS 76.2% chance of exploitation in 30 days, percentile 99.5%
- public exploits
- 0
- none known
Summary
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.
Patch / fix
Is CVE-2021-21616 in your dependencies? Fencer shows which of your repositories are affected as soon as an advisory lands, and opens the fix as a pull request.
Check with FencerExploit prediction
76.22% chance of exploitation in the next 30 days, higher than 99.5% of all scored CVEs (FIRST EPSS, 2026-11-09).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.1 | 4.6 | CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:N |
| NVD | 2.0 | 3.5 | AV:N/AC:M/Au:S/C:N/I:P/A:N |
| GitHub | 3.1 | 4.6 | CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:N |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| maven | org.biouno:uno-choice | <2.5.3 |
2.5.3 |
Affected products
- Jenkins project Jenkins Active Choices Plugin
Classification
- Weakness
-
- CWE-79 Improper Neutralization of Input During Web Page Generation
References
-
github.com
/jenkinsci/active-choices-plugin/commit/d0b768c18bafd812b52fe579def8b14e26033ec9
web
-
jenkins.io
/security/advisory/2021-02-24/#SECURITY-2192
web, vendor-advisory
-
openwall.com
/lists/oss-security/2021/02/24/3
mailing-list, web, third-party-advisory
-
nvd.nist.gov
/vuln/detail/CVE-2021-21616
advisory
-
github.com
/jenkinsci/active-choices-plugin
package
Sources
- CVE List CVE-2021-21616
- GitHub Advisory GHSA-4f6x-g5vh-8jm5
- NVD CVE-2021-21616
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