CVE-2024-25610
📋 TL;DR
This vulnerability allows remote authenticated users to inject malicious JavaScript or HTML into blog entries in Liferay Portal/DXP, leading to cross-site scripting (XSS) attacks. It affects Liferay Portal versions 7.2.0 through 7.4.3.12 and Liferay DXP versions 7.4 before update 9, 7.3 before update 4, and 7.2 before fix pack 19.
💻 Affected Systems
- Liferay Portal
- Liferay DXP
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Attackers could steal session cookies, perform actions as authenticated users, redirect to malicious sites, or compromise user accounts through stored XSS.
Likely Case
Authenticated attackers inject malicious scripts into blog content that execute when other users view the blog, potentially stealing credentials or session data.
If Mitigated
With proper input validation and output encoding, the XSS payloads would be neutralized before execution.
🎯 Exploit Status
Exploitation requires authenticated access to create or edit blog entries. The vulnerability is in content sanitization logic.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Liferay Portal 7.4.3.13+, Liferay DXP 7.4 update 9+, 7.3 update 4+, 7.2 fix pack 19+
Vendor Advisory: https://liferay.dev/portal/security/known-vulnerabilities/-/asset_publisher/jekt/content/cve-2024-25610
Restart Required: Yes
Instructions:
1. Download the appropriate patch from Liferay's customer portal. 2. Apply the patch following Liferay's patching documentation. 3. Restart the Liferay instance. 4. Verify the fix by testing blog entry content sanitization.
🔧 Temporary Workarounds
Enable Content Security Policy (CSP)
allImplement a strict CSP header to mitigate XSS impact by restricting script execution sources.
Add CSP headers via web server configuration or Liferay settings
Disable Blog Module
allTemporarily disable the blog module if not essential for business operations.
Navigate to Control Panel > Configuration > System Settings > Blogs in Liferay admin
🧯 If You Can't Patch
- Implement web application firewall (WAF) rules to block XSS payloads in blog content
- Restrict blog creation/editing permissions to trusted users only
🔍 How to Verify
Check if Vulnerable:
Check Liferay version via Control Panel > Server Administration > Properties > liferay.home/build.{version}. If version matches affected range and default blog configuration is used, system is vulnerable.Check Version:
Check ${liferay.home}/build.{version} file or use Liferay Control Panel > Server AdministrationVerify Fix Applied:
After patching, test blog entry creation with XSS payloads (e.g., <script>alert('test')</script>) and verify they are sanitized or blocked.📡 Detection & Monitoring
Log Indicators:
- Unusual blog entry creation/modification patterns
- Requests containing script tags or JavaScript in blog content parameters
Network Indicators:
- HTTP POST requests to /api/jsonws/blogentry/add-entry or similar endpoints with suspicious content
SIEM Query:
source="liferay.log" AND ("blogentry" OR "blog") AND ("script" OR "javascript" OR "onload" OR "onerror")