CVE-2025-62265
📋 TL;DR
This CVE describes a cross-site scripting (XSS) vulnerability in Liferay Portal and DXP's Blogs widget. Attackers can inject malicious <iframe> elements without sandbox attributes into blog content, allowing them to execute arbitrary scripts in victims' browsers. This affects multiple versions of Liferay Portal and DXP, potentially compromising user sessions and data.
💻 Affected Systems
- Liferay Portal
- Liferay DXP
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Attackers could steal administrator credentials, perform actions as authenticated users, deface websites, or redirect users to malicious sites, leading to complete system compromise.
Likely Case
Session hijacking, cookie theft, or credential harvesting from users who view malicious blog posts, potentially leading to unauthorized access to sensitive portal data.
If Mitigated
With proper input validation and output encoding, the impact is limited to minor content manipulation without script execution.
🎯 Exploit Status
Exploitation requires the ability to create or edit blog entries, making authenticated access necessary. The vulnerability is in the Content text field where HTML can be injected.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Apply the latest security patches from Liferay. For DXP: 2023.Q4.11+, 2023.Q3.9+, 7.4 update 93+, 7.3 update 37+. For Portal: 7.4.3.112+.
Vendor Advisory: https://liferay.dev/portal/security/known-vulnerabilities/-/asset_publisher/jekt/content/CVE-2025-62265
Restart Required: No
Instructions:
1. Download the appropriate security fix from Liferay's customer portal. 2. Apply the fix according to Liferay's patching documentation. 3. Verify the Blogs widget now properly sanitizes <iframe> elements.
🔧 Temporary Workarounds
Disable Blogs widget HTML input
allConfigure the Blogs widget to disallow HTML input in the Content field, using plain text only.
Navigate to Control Panel > Configuration > System Settings > Blogs. Set 'html.content.allowed' to false.
Implement custom input sanitization
allAdd a custom filter or hook to sanitize blog content by adding sandbox attributes to all <iframe> elements.
Implement a custom ContentTransformer or Filter to process blog entries before display.
🧯 If You Can't Patch
- Restrict blog creation/editing permissions to trusted users only.
- Implement a web application firewall (WAF) with XSS protection rules to block malicious iframe injections.
🔍 How to Verify
Check if Vulnerable:
Test by creating a blog entry with an <iframe> element without sandbox attribute and check if it executes scripts in the parent context.Check Version:
Check Liferay version via Control Panel > Server Administration > Properties, or run 'grep liferay.version /path/to/liferay/portal-ext.properties'Verify Fix Applied:
After patching, test that <iframe> elements in blog content now include sandbox attributes and cannot execute scripts.📡 Detection & Monitoring
Log Indicators:
- Unusual blog entry creation/modification patterns, especially with HTML content containing iframe tags.
Network Indicators:
- HTTP requests with suspicious iframe payloads in blog content submissions.
SIEM Query:
source="liferay.logs" AND (message:"iframe" OR message:"sandbox") AND message:"blog"