Stored XSS Threat in Jenkins Active Choices Plugin
CVE-2021-21699

5.4MEDIUM

Key Information:

Vendor
Jenkins
Status
Jenkins Active Choices Plugin
Vendor
CVE Published:
12 November 2021

Summary

The Active Choices Plugin in Jenkins, version 2.5.6 and earlier, is vulnerable to a stored cross-site scripting (XSS) flaw due to improper escaping of parameter names for reactive parameters and dynamic reference parameters. This vulnerability can be exploited by attackers holding Job/Configure permissions, allowing them to inject malicious scripts that are stored and executed in the context of other users, posing a significant security risk.

Affected Version(s)

Jenkins Active Choices Plugin <= 2.5.6

References

https://www.jenkins.io/security/advisory/2021-11-12/#SECU...
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http://www.openwall.com/lists/oss-security/2021/11/12/1
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CVSS V3.1

Score:
5.4
Severity:
MEDIUM
Confidentiality:
Low
Integrity:
Low
Availability:
Low
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
Required
Scope:
Changed

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.