CVE-2021-21616: XSS
First published: Wed Feb 24 2021(Updated: )
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.
Credit: jenkinsci-cert@googlegroups.com jenkinsci-cert@googlegroups.com jenkinsci-cert@googlegroups.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Jenkins Active Choices | <=2.5.2 | |
| maven/org.biouno:uno-choice | <=2.5.2 | 2.5.3 |
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Reference Links
- http://www.openwall.com/lists/oss-security/2021/02/24/3
- https://www.jenkins.io/security/advisory/2021-02-24/#SECURITY-2192
- https://nvd.nist.gov/vuln/detail/CVE-2021-21616
- https://github.com/jenkinsci/active-choices-plugin/commit/d0b768c18bafd812b52fe579def8b14e26033ec9
- https://github.com/advisories/GHSA-4f6x-g5vh-8jm5 (Advisory)
Frequently Asked Questions
What is the severity of CVE-2021-21616?
CVE-2021-21616 is considered a high severity vulnerability due to its potential for stored cross-site scripting (XSS) attacks.
How do I fix CVE-2021-21616?
To fix CVE-2021-21616, upgrade the Jenkins Active Choices Plugin to version 2.5.3 or later.
Who is affected by CVE-2021-21616?
CVE-2021-21616 affects users of Jenkins Active Choices Plugin versions 2.5.2 and earlier.
What is the impact of exploiting CVE-2021-21616?
Exploiting CVE-2021-21616 allows attackers with Job/Configure permission to execute arbitrary JavaScript in users' browsers.
Is CVE-2021-21616 related to any other vulnerabilities?
CVE-2021-21616 is related to other XSS vulnerabilities within the Jenkins ecosystem, particularly those involving insufficient input validation.
- collector/nvd-index
- collector/nvd-api
- collector/github-advisory-latest
- alias/GHSA-4f6x-g5vh-8jm5
- alias/CVE-2021-21616
- collector/nvd-cve
- collector/github-advisory
- agent/type
- agent/softwarecombine
- collector/mitre-cve
- source/MITRE
- agent/references
- agent/severity
- agent/last-modified-date
- agent/weakness
- agent/author
- agent/description
- agent/event
- agent/first-publish-date
- agent/trending
- agent/tags
- agent/source
- vendor/jenkins
- canonical/jenkins active choices
- version/jenkins active choices/2.5.2
- package-manager/maven