CVE-2025-46920
📋 TL;DR
Adobe Experience Manager versions 6.5.22 and earlier contain a stored cross-site scripting vulnerability in form fields. Low-privileged attackers can inject malicious JavaScript that executes in victims' browsers when they visit compromised pages. This affects all organizations using vulnerable AEM versions.
💻 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, or redirect users to malicious sites, potentially leading to full system compromise.
Likely Case
Low-privileged users could escalate privileges, steal session data from other users, or deface website content through injected scripts.
If Mitigated
With proper input validation and output encoding, the risk is limited to potential data leakage from users who interact with malicious content.
🎯 Exploit Status
Exploitation requires authenticated low-privileged access. Stored XSS means payload persists until cleaned.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 6.5.23 or later
Vendor Advisory: https://helpx.adobe.com/security/products/experience-manager/apsb25-48.html
Restart Required: Yes
Instructions:
1. Download AEM 6.5.23 or later from Adobe distribution. 2. Backup current instance. 3. Apply service pack following Adobe's upgrade documentation. 4. Restart AEM instance. 5. Verify successful upgrade.
🔧 Temporary Workarounds
Input Validation Filter
allImplement custom servlet filter to sanitize form field inputs
Implement Java servlet filter with OWASP Java Encoder library for input sanitization
Content Security Policy
allImplement strict CSP headers to mitigate script execution
Add 'Content-Security-Policy: script-src 'self'' to HTTP headers
🧯 If You Can't Patch
- Restrict low-privileged user access to vulnerable form fields
- Implement 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 6.5.22 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 6.5.23 or later and test form fields with XSS payloads.📡 Detection & Monitoring
Log Indicators:
- Unusual POST requests to form endpoints
- JavaScript payloads in request parameters
- Multiple failed XSS attempts
Network Indicators:
- Suspicious script tags in HTTP POST data
- Unusual outbound connections from AEM server
SIEM Query:
source="aem_access.log" AND ("<script>" OR "javascript:" OR "onerror=" OR "onload=")