CVE-2025-46904
📋 TL;DR
A stored Cross-Site Scripting (XSS) vulnerability in Adobe Experience Manager allows low-privileged attackers to inject malicious JavaScript into vulnerable form fields. When victims browse pages containing these fields, their browsers execute the attacker's scripts. This affects AEM versions 6.5.22 and earlier.
💻 Affected Systems
- Adobe Experience Manager
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Attackers could steal session cookies, redirect users to malicious sites, perform actions on behalf of authenticated users, or deploy ransomware payloads through the compromised browser sessions.
Likely Case
Session hijacking, credential theft, or defacement of web pages through injected content.
If Mitigated
Limited to low-privileged user actions within their authorized scope, with proper input validation and output encoding preventing exploitation.
🎯 Exploit Status
Exploitation requires authenticated low-privileged access. The vulnerability is in form fields where user input isn't properly sanitized.
🛠️ 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's distribution portal. 2. Apply the service pack following Adobe's upgrade documentation. 3. Restart all AEM instances. 4. Verify the update completed successfully.
🔧 Temporary Workarounds
Input Validation Filter
allImplement custom servlet filters to sanitize user input in form fields
Implement Java servlet filter with OWASP Java Encoder library for output encoding
Content Security Policy
allDeploy strict CSP headers to limit script execution
Add 'Content-Security-Policy: script-src 'self'' to HTTP responses
🧯 If You Can't Patch
- Implement web application firewall (WAF) rules to block XSS payloads
- Restrict low-privileged user access to content authoring interfaces
🔍 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 to ensure they're properly sanitized.📡 Detection & Monitoring
Log Indicators:
- Unusual content modifications in form fields
- JavaScript payloads in request logs
- Multiple failed XSS attempts
Network Indicators:
- Unexpected script tags in HTTP responses
- Suspicious outbound connections from user browsers
SIEM Query:
source="aem-access.log" AND ("<script>" OR "javascript:" OR "onerror=" OR "onload=")