CVE-2025-46926
📋 TL;DR
This stored XSS vulnerability in Adobe Experience Manager allows low-privileged attackers to inject malicious JavaScript into form fields. When victims browse pages containing the injected scripts, their browsers execute the malicious code, potentially leading to session hijacking or data theft. Organizations using Adobe Experience Manager versions 6.5.22 and earlier are affected.
💻 Affected Systems
- Adobe Experience Manager
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Attackers could steal administrator sessions, compromise user accounts, deface websites, or redirect users to malicious sites, potentially leading to full system compromise.
Likely Case
Low-privileged attackers steal session cookies or credentials from users who visit compromised pages, leading to account takeover and lateral movement.
If Mitigated
With proper input validation and output encoding, the impact is limited to minor data exposure or temporary service disruption.
🎯 Exploit Status
Exploitation requires authenticated low-privileged access; stored XSS payloads persist 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 Adobe Experience Manager 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 input sanitization
Content Security Policy
allDeploy strict CSP headers to mitigate XSS impact
Add 'Content-Security-Policy: default-src 'self'; script-src 'self'' to HTTP headers
🧯 If You Can't Patch
- Implement web application firewall (WAF) rules to block XSS payloads in form submissions
- Disable or restrict low-privileged user access to vulnerable form fields and components
🔍 How to Verify
Check if Vulnerable:
Check AEM version via OSGi console (http://localhost:4502/system/console/bundles) or CRXDE Lite; versions 6.5.22 or earlier are vulnerable.Check Version:
curl -u admin:admin http://localhost:4502/system/console/bundles | 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 confirm sanitization.📡 Detection & Monitoring
Log Indicators:
- Unusual POST requests to form submission endpoints with script tags
- Multiple failed XSS attempts in request logs
- Suspicious user agent strings in form submissions
Network Indicators:
- HTTP requests containing <script> tags in form parameters
- Unusual outbound connections from AEM servers after form submissions
SIEM Query:
source="aem_access.log" AND ("<script>" OR "javascript:" OR "onload=" OR "onerror=")