CVE-2021-21699: XSS
First published: Fri Nov 12 2021(Updated: )
Jenkins Active Choices Plugin 2.5.6 and earlier does not escape the parameter name of reactive parameters and dynamic reference parameters, 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 | <=2.5.6 | |
| maven/org.biouno:uno-choice | <=2.5.6 | 2.5.7 |
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Reference Links
- http://www.openwall.com/lists/oss-security/2021/11/12/1
- https://www.jenkins.io/security/advisory/2021-11-12/#SECURITY-2219
- https://nvd.nist.gov/vuln/detail/CVE-2021-21699
- https://github.com/jenkinsci/active-choices-plugin/commit/4529ab6413d4ec70d02455536ea6c5196332ba62
- https://github.com/advisories/GHSA-rp4x-h577-chvq (Advisory)
Frequently Asked Questions
What is the severity of CVE-2021-21699?
CVE-2021-21699 is classified as a medium severity stored cross-site scripting (XSS) vulnerability.
How do I fix CVE-2021-21699?
To fix CVE-2021-21699, upgrade the Jenkins Active Choices Plugin to version 2.5.7 or later.
Who is affected by CVE-2021-21699?
CVE-2021-21699 affects Jenkins Active Choices Plugin versions 2.5.6 and earlier.
Can attackers exploit CVE-2021-21699?
Yes, attackers can exploit CVE-2021-21699 if they have Job/Configure permissions.
What type of vulnerability is CVE-2021-21699?
CVE-2021-21699 is a stored cross-site scripting (XSS) vulnerability.
- collector/nvd-index
- collector/nvd-api
- collector/github-advisory-latest
- alias/GHSA-rp4x-h577-chvq
- alias/CVE-2021-21699
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- version/jenkins active choices/2.5.6
- package-manager/maven