Stored Cross-Site Scripting Vulnerability in Jenkins Active Choices Plugin
CVE-2021-21616

4.6MEDIUM

Key Information:

Vendor

Jenkins
Status
Jenkins Active Choices Plugin
Vendor
CVE Published:
24 February 2021

What is CVE-2021-21616?

The Active Choices Plugin for Jenkins, versions 2.5.2 and earlier, contains a stored cross-site scripting (XSS) vulnerability due to improper escaping of reference parameter values. This flaw can be exploited by authenticated attackers who possess Job/Configure permissions, allowing them to execute malicious scripts in the context of affected users' browsers. As a result, attackers could potentially compromise user sessions or manipulate the user experience within the Jenkins environment. It is crucial for users to upgrade to the latest version of the plugin to mitigate this risk.

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Affected Version(s)

Jenkins Active Choices Plugin <= 2.5.2

References

https://www.jenkins.io/security/advisory/2021-02-24/#SECU...
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http://www.openwall.com/lists/oss-security/2021/02/24/3
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CVSS V3.1

Score:
4.6
Severity:
MEDIUM
Confidentiality:
Low
Integrity:
Low
Availability:
Low
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
Required
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

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