CVE-2025-64789
📋 TL;DR
A stored Cross-Site Scripting vulnerability in Adobe Experience Manager allows low-privileged attackers to inject malicious JavaScript into form fields. When victims browse pages containing the compromised fields, their browsers execute the attacker's code. This affects AEM versions 6.5.23 and earlier.
💻 Affected Systems
- Adobe Experience Manager
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Attackers could steal administrator session cookies, perform actions as authenticated users, deface websites, or redirect users to malicious sites.
Likely Case
Session hijacking, credential theft, or unauthorized content modification by authenticated low-privileged users.
If Mitigated
Limited impact with proper input validation, output encoding, and Content Security Policy headers in place.
🎯 Exploit Status
Exploitation requires authenticated access but minimal technical skill once access is obtained.
🛠️ 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. Backup your AEM instance. 2. Download and install AEM 6.5.24 or later from Adobe's distribution portal. 3. Apply the update following Adobe's upgrade documentation. 4. Restart the AEM service.
🔧 Temporary Workarounds
Input Validation Filter
allImplement server-side input validation to sanitize form field inputs
Configure AEM's XSS protection filters via /system/console/configMgr
Content Security Policy
allImplement CSP headers to restrict script execution
Add 'Content-Security-Policy' header via Apache/Dispatcher configuration
🧯 If You Can't Patch
- Restrict low-privileged user access to content authoring interfaces
- Implement web application firewall rules to block XSS payloads
🔍 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 form fields with XSS payloads that should be sanitized.📡 Detection & Monitoring
Log Indicators:
- Unusual POST requests to form submission endpoints
- JavaScript payloads in request parameters
- Multiple failed XSS attempts
Network Indicators:
- Suspicious script tags in HTTP POST data
- Unusual outbound connections after form submissions
SIEM Query:
source="aem-access.log" AND ("<script>" OR "javascript:" OR "onerror=" OR "onload=")