CVE-2025-64858
📋 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 compromised fields, their browsers execute the attacker's JavaScript. This affects all users of vulnerable AEM instances.
💻 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
Limited impact with proper input validation, output encoding, and Content Security Policy (CSP) headers preventing script execution.
🎯 Exploit Status
Requires authenticated access with at least contributor permissions. Exploitation involves injecting scripts into vulnerable form fields that persist in the system.
🛠️ 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 AEM 6.5.24 or later from Adobe's distribution portal. 2. Apply the service pack following Adobe's upgrade documentation. 3. Restart all AEM instances. 4. Verify the update was successful.
🔧 Temporary Workarounds
Implement Content Security Policy
allAdd CSP headers to restrict script execution from untrusted sources
Add 'Content-Security-Policy' header with appropriate directives to web server configuration
Input Validation Filter
allDeploy custom servlet filter to sanitize form field inputs
Implement Java servlet filter that validates/sanitizes all user inputs before processing
🧯 If You Can't Patch
- Restrict contributor permissions to trusted users only
- 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, 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 version is 6.5.24 or later and test form fields for script injection attempts.📡 Detection & Monitoring
Log Indicators:
- Unusual form submissions with script tags
- Multiple failed login attempts followed by form submissions
- Requests containing JavaScript payloads in parameters
Network Indicators:
- HTTP requests with script payloads in POST data
- Unusual outbound connections from AEM server after form submissions
SIEM Query:
source="aem_access.log" AND ("<script>" OR "javascript:" OR "onload=" OR "onerror=")