CVE-2025-64539
📋 TL;DR
Adobe Experience Manager versions 6.5.23 and earlier contain a DOM-based Cross-Site Scripting vulnerability that allows attackers to execute arbitrary JavaScript in victims' browsers. Successful exploitation can lead to session takeover and compromise of user data. This affects all users of vulnerable AEM instances who visit malicious pages.
💻 Affected Systems
- Adobe Experience Manager
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Complete session takeover leading to administrative account compromise, data theft, and potential lateral movement within the organization.
Likely Case
Session hijacking of regular users leading to unauthorized access to sensitive content and user impersonation.
If Mitigated
Limited impact with proper Content Security Policy headers and input validation, though some risk remains.
🎯 Exploit Status
Exploitation requires user interaction (victim must visit malicious page) but no authentication to the AEM instance.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 6.5.24 or later
Vendor Advisory: https://helpx.adobe.com/security/products/experience-manager/apsb25-115.html
Restart Required: Yes
Instructions:
1. Download Adobe Experience Manager 6.5.24 or later from Adobe's distribution portal. 2. Follow Adobe's upgrade documentation for your deployment type (AEM as a Cloud Service, AMS, or on-premise). 3. Apply the update to all instances (author and publish). 4. Restart all AEM services.
🔧 Temporary Workarounds
Implement Content Security Policy
allAdd strict CSP headers to prevent script execution from untrusted sources
Add 'Content-Security-Policy: script-src 'self'' to web server configuration
Input Validation Filter
allImplement server-side input validation for all user-controllable inputs
Configure AEM's XSS protection filters and custom servlet filters
🧯 If You Can't Patch
- Implement strict Content Security Policy headers with script-src 'self' only
- Deploy web application firewall with XSS protection rules
🔍 How to Verify
Check if Vulnerable:
Check AEM version via CRXDE Lite or system console. If version is 6.5.23 or earlier, system is vulnerable.Check Version:
curl -u admin:password http://localhost:4502/system/console/status-productinfo | grep 'Adobe Experience Manager'Verify Fix Applied:
Verify AEM version is 6.5.24 or later and test with XSS payloads in user-controllable fields.📡 Detection & Monitoring
Log Indicators:
- Unusual JavaScript payloads in request logs
- Multiple failed login attempts from same session
- Suspicious referrer headers
Network Indicators:
- Outbound connections to unknown domains from AEM sessions
- Unusual JavaScript file requests
SIEM Query:
source="aem_access.log" AND ("<script>" OR "javascript:" OR "onerror=" OR "onload=")