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CVE-2025-53678: Jenkins User1st uTester Plugin 1.1 and earlier stores the uTester JWT token unencrypted in its global configur

26
Routine
MEDIUM 6.5UPGRADE

CVE-2025-53678 is a medium-severity flaw (CVSS 6.5) affecting user1st utester. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

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.

Why this priority

  • No elevated risk signals yet

A fixed release or distro patch exists.

Risk facts

CVSS score6.5 (Medium)
Attack vectorNetwork (remote)
Attack complexityLow
Privileges neededLow
User interactionNone
EPSS exploit chance0.2% (top 85%)
CISA exploited listNo
WeaknessCWE-311
Published2025-07-09
Last modified2026-06-17
Publisher (CNA): Jenkins Project · Vendor: jenkins

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Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

jenkins user1st utester UPGRADE
Affected: <= 1.1
Fixed in: newer than 1.1
Safe to downgrade to: no unaffected older release
1. Check installed version
apt-cache policy user1st-utester || rpm -q user1st-utester || user1st-utester --version
2. UPGRADE to newer than 1.1 (Debian / Ubuntu)
sudo apt update && sudo apt install --only-upgrade user1st-utester
2. UPGRADE (RHEL / Amazon Linux / Fedora)
sudo dnf upgrade user1st-utester
Note
Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.
Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2025-53678?

user1st utester: upgrade to newer than 1.1. Exact commands for each OS are on this page.

Is CVE-2025-53678 being exploited?

CVE-2025-53678 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2025-53678 affect?

CVE-2025-53678 affects user1st utester. Severity is medium (CVSS 6.5). 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.

How urgent is CVE-2025-53678?

Priority 26/100. No elevated risk signals yet.

Software pages

Jenkins vulnerabilities

References

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