CVE-2025-53678: Jenkins User1st uTester Plugin vulnerability exposes unencrypted token to authenticated users

July 9, 2025

Jenkins User1st uTester Plugin 1.1 and earlier stores the uTester JWT token unencrypted in its global configuration file on the Jenkins controller, where it can be viewed by users with access to the Jenkins controller file system.

References

github.com/advisories/GHSA-w4xv-mj6v-p4g2
github.com/jenkinsci/user1st-utester-plugin
nvd.nist.gov/vuln/detail/CVE-2025-53678
www.jenkins.io/security/advisory/2025-07-09/

Code Behaviors & Features

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