CVE-2025-53676
📋 TL;DR
The Jenkins Xooa Plugin 0.0.7 and earlier stores sensitive deployment tokens unencrypted in Jenkins configuration files. This allows attackers with file system access to the Jenkins controller to steal these credentials. All Jenkins instances using vulnerable Xooa Plugin versions are affected.
💻 Affected Systems
- Jenkins Xooa Plugin
📦 What is this software?
Xooa by Jenkins
⚠️ Risk & Real-World Impact
Worst Case
Attackers gain access to Xooa deployment tokens, potentially compromising connected Xooa infrastructure and enabling unauthorized deployments or data access.
Likely Case
Malicious insiders or compromised accounts with file system access steal deployment tokens, leading to unauthorized access to Xooa resources.
If Mitigated
With proper file system access controls, only authorized administrators can access the configuration files, limiting exposure.
🎯 Exploit Status
Exploitation requires file system access to Jenkins controller, typically through compromised credentials or insider access.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 0.0.8 or later
Vendor Advisory: https://www.jenkins.io/security/advisory/2025-07-09/#SECURITY-3522
Restart Required: Yes
Instructions:
1. Update Jenkins Xooa Plugin to version 0.0.8 or later via Jenkins Plugin Manager. 2. Restart Jenkins. 3. Regenerate any potentially exposed Xooa deployment tokens.
🔧 Temporary Workarounds
Restrict File System Access
linuxLimit access to Jenkins controller file system to authorized administrators only.
chmod 600 $JENKINS_HOME/config.xml
chmod 600 $JENKINS_HOME/*.xml
Remove Xooa Plugin
allUninstall the vulnerable plugin if Xooa integration is not required.
java -jar jenkins-cli.jar -s http://localhost:8080/ delete-plugin xooa
🧯 If You Can't Patch
- Rotate all Xooa deployment tokens immediately
- Implement strict file system access controls on Jenkins controller
🔍 How to Verify
Check if Vulnerable:
Check Jenkins plugin manager for Xooa Plugin version 0.0.7 or earlier.Check Version:
grep -r 'Xooa Plugin' $JENKINS_HOME/plugins/xooa/META-INF/MANIFEST.MFVerify Fix Applied:
Verify Xooa Plugin version is 0.0.8 or later in Jenkins plugin manager.📡 Detection & Monitoring
Log Indicators:
- Unauthorized file access attempts to Jenkins configuration files
- Unexpected Xooa API calls from new IPs
Network Indicators:
- Unusual Xooa API traffic patterns
- Authentication attempts with previously unused tokens
SIEM Query:
source="jenkins.log" AND ("config.xml access" OR "xooa token")