CVE-2025-64620
📋 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 victims browse pages containing these 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 deploy additional malware payloads through persistent script execution.
Likely Case
Session hijacking, credential theft, or defacement of web content through injected scripts that execute in users' browsers.
If Mitigated
With proper input validation and output encoding controls, the vulnerability would be prevented, resulting in no impact.
🎯 Exploit Status
Exploitation requires low-privileged access to inject scripts into vulnerable fields. No public exploit code is currently known.
🛠️ 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 apply the latest AEM 6.5 service pack (6.5.24+). 3. Restart the AEM service. 4. Verify the update completed successfully.
🔧 Temporary Workarounds
Implement Input Validation
allAdd server-side validation to sanitize all user input in form fields before processing.
Custom AEM servlet filter or validation component required
Apply Output Encoding
allEnsure all user-controlled data is properly encoded before rendering in HTML responses.
Use OWASP Java Encoder or similar libraries in AEM components
🧯 If You Can't Patch
- Restrict low-privileged user access to form editing capabilities
- Implement web application firewall (WAF) 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, the system is vulnerable.Check Version:
curl -u admin:password http://localhost:4502/system/console/status-productinfo | grep 'Adobe Experience Manager'Verify Fix Applied:
After patching, verify the version is 6.5.24 or later and test form fields with safe XSS payloads to confirm they're properly sanitized.📡 Detection & Monitoring
Log Indicators:
- Unusual POST requests to form submission endpoints with script tags or JavaScript payloads
- Multiple failed validation attempts on form fields
Network Indicators:
- HTTP requests containing <script> tags or JavaScript in form parameters
- Unexpected outbound connections from AEM to external domains
SIEM Query:
source="aem_access.log" AND ("<script>" OR "javascript:" OR "onerror=" OR "onload=")