CVE-2025-62239
📋 TL;DR
This cross-site scripting (XSS) vulnerability in Liferay's workflow process builder allows authenticated attackers to inject malicious scripts or HTML into workflow definitions. The vulnerability affects Liferay Portal 7.4.3.21-7.4.3.111 and Liferay DXP 2023.Q4.0-2023.Q4.5, 2023.Q3.1-2023.Q3.8, and 7.4 update 21-92. Attackers must have authenticated access to the workflow builder interface.
💻 Affected Systems
- Liferay Portal
- Liferay DXP
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Authenticated attacker could steal session cookies, perform actions as other users, deface the portal, or redirect users to malicious sites, potentially leading to account compromise or data theft.
Likely Case
Attackers with workflow builder access could inject scripts that execute in other users' browsers when they view affected workflow definitions, enabling session hijacking or limited privilege escalation.
If Mitigated
With proper input validation and output encoding, the impact is limited to script execution in the context of users viewing workflow definitions, but authentication requirements reduce attack surface.
🎯 Exploit Status
Exploitation requires authenticated access to the workflow builder interface and knowledge of XSS payloads. The vulnerability is in workflow definition input fields.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Liferay Portal 7.4.3.112+, Liferay DXP 2023.Q4.6+, 2023.Q3.9+, 7.4 update 93+
Vendor Advisory: https://liferay.dev/portal/security/known-vulnerabilities/-/asset_publisher/jekt/content/CVE-2025-62239
Restart Required: No
Instructions:
1. Download the appropriate fix pack from Liferay's customer portal. 2. Apply the fix pack according to Liferay's deployment documentation. 3. Verify the update was successful by checking the version number.
🔧 Temporary Workarounds
Restrict Workflow Builder Access
allLimit access to the workflow process builder interface to only trusted administrators who require it for business operations.
Configure role-based access control in Liferay to restrict 'Workflow Definition' permissions to minimal necessary users
Implement Content Security Policy
allAdd Content Security Policy headers to restrict script execution from untrusted sources.
Add CSP headers via web server configuration or Liferay's portal-ext.properties: header.security.content-security-policy.default-src 'self'
🧯 If You Can't Patch
- Implement strict input validation and output encoding for all workflow definition fields
- Monitor and audit workflow definition changes for suspicious content
🔍 How to Verify
Check if Vulnerable:
Check Liferay version via Control Panel → Configuration → Server Administration → System Information. Compare against affected version ranges.Check Version:
Check via Liferay UI or examine liferay-portal.xml/liferay-dxp.xml version propertiesVerify Fix Applied:
Verify version is updated to patched versions: Portal 7.4.3.112+ or DXP 2023.Q4.6+/2023.Q3.9+/7.4 update 93+. Test workflow definition input fields for XSS payloads.📡 Detection & Monitoring
Log Indicators:
- Unusual workflow definition modifications
- Suspicious script-like content in workflow XML/definitions
- Multiple failed authentication attempts followed by workflow access
Network Indicators:
- HTTP requests containing script tags or JavaScript in workflow-related parameters
- Unusual traffic patterns to workflow builder endpoints
SIEM Query:
source="liferay" AND (event="workflow_definition_modified" OR event="workflow_created") AND (message="*script*" OR message="*javascript:*" OR message="*onload=*" OR message="*onerror=*")