CVE-2025-64826
📋 TL;DR
Adobe Experience Manager versions 6.5.23 and earlier contain a stored XSS vulnerability where low-privileged attackers can inject malicious scripts into form fields. When users visit pages with these compromised fields, their browsers execute the attacker's JavaScript. This affects organizations using vulnerable AEM instances for content management.
💻 Affected Systems
- Adobe Experience Manager
📦 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 install malware through drive-by downloads.
Likely Case
Session hijacking, credential theft, defacement of web pages, or data exfiltration from user browsers.
If Mitigated
Limited impact with proper input validation, output encoding, and Content Security Policy headers in place.
🎯 Exploit Status
Requires authenticated low-privileged access. Stored XSS payloads persist until cleaned.
🛠️ 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 AEM instance and content. 2. Download AEM 6.5.24+ from Adobe Distribution portal. 3. Apply Service Pack or cumulative fix pack. 4. Restart AEM instance. 5. Verify update via AEM welcome screen.
🔧 Temporary Workarounds
Input Validation Filter
allImplement servlet filter to sanitize form field inputs
Custom Java filter implementation required
Content Security Policy
allAdd CSP headers to restrict script execution
Add 'Content-Security-Policy' header via dispatcher or web server
🧯 If You Can't Patch
- Review and sanitize all custom form components for proper input validation
- Implement web application firewall rules to block XSS payload patterns
🔍 How to Verify
Check if Vulnerable:
Check AEM version via Welcome screen (http://host:port/libs/granite/core/content/login.html) or CRX Package ManagerCheck Version:
curl -s http://aem-host:port/system/console/status-productinfo | grep 'Adobe Experience Manager'Verify Fix Applied:
Verify version is 6.5.24+ and test form fields with XSS payloads like <script>alert('test')</script>📡 Detection & Monitoring
Log Indicators:
- Unusual POST requests to form submission endpoints
- Script tags in request parameters
- Multiple failed validation attempts
Network Indicators:
- HTTP requests containing script tags or JavaScript in form data
- Unexpected outbound connections from user browsers
SIEM Query:
source="aem-access.log" AND ("<script" OR "javascript:" OR "onerror=" OR "onload=")