CVE-2025-46892
📋 TL;DR
Adobe Experience Manager versions 6.5.22 and earlier contain a stored Cross-Site Scripting (XSS) vulnerability that 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 scripts. This affects organizations using vulnerable Adobe Experience Manager 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 ransomware through client-side attacks.
Likely Case
Session hijacking, credential theft, or defacement of web pages through injected content.
If Mitigated
Limited impact with proper input validation, output encoding, and Content Security Policy (CSP) headers in place.
🎯 Exploit Status
Exploitation requires authenticated low-privileged access to inject scripts into vulnerable form fields.
🛠️ 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. Backup your AEM instance. 2. Download and apply Adobe Experience Manager 6.5.23 or later from Adobe's official distribution. 3. Restart the AEM service. 4. Verify the update was successful.
🔧 Temporary Workarounds
Implement Content Security Policy (CSP)
allAdd CSP headers to restrict script execution from untrusted sources.
Add 'Content-Security-Policy' header with appropriate directives in web server configuration.
Input Validation and Output Encoding
allSanitize all user inputs and encode outputs in web forms.
Implement server-side validation and encoding libraries for all form fields.
🧯 If You Can't Patch
- Restrict low-privileged user access to form editing capabilities.
- Monitor and audit form submissions for suspicious script patterns.
🔍 How to Verify
Check if Vulnerable:
Check Adobe Experience Manager version via AEM Web Console (/system/console) or by examining the AEM installation directory.Check Version:
Check via AEM Web Console at /system/console or inspect crx-quickstart/logs/error.log for version information.Verify Fix Applied:
Confirm version is 6.5.23 or later and test form fields for XSS by attempting to inject basic script payloads.📡 Detection & Monitoring
Log Indicators:
- Unusual form submissions containing script tags or JavaScript code in request logs.
- Multiple failed login attempts followed by form edits.
Network Indicators:
- HTTP requests with script payloads in POST data to form endpoints.
- Outbound connections to unknown domains from AEM server.
SIEM Query:
source="aem_logs" AND ("<script>" OR "javascript:" OR "onerror=" OR "onload=")