CVE-2025-46958
📋 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 attacker's code. Organizations using AEM 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 credentials, perform actions as authenticated users, deface websites, or redirect users to malicious sites.
Likely Case
Session hijacking, credential theft, or unauthorized content modification by authenticated low-privileged users.
If Mitigated
Limited impact with proper input validation, output encoding, and Content Security Policy (CSP) headers in place.
🎯 Exploit Status
Exploitation requires knowledge of vulnerable form fields and authenticated access.
🛠️ 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: No
Instructions:
1. Download Adobe Experience Manager 6.5.23 or later from Adobe's distribution portal. 2. Follow Adobe's upgrade documentation for your deployment type (AEM as a Cloud Service, AMS, or on-premise). 3. Test the upgrade in a non-production environment first.
🔧 Temporary Workarounds
Implement Content Security Policy
allAdd CSP headers to restrict script execution sources and prevent inline script execution.
Add 'Content-Security-Policy' header with appropriate directives to web server configuration
Input Validation and Output Encoding
allImplement server-side validation and proper output encoding for all user inputs in form fields.
Configure AEM's XSS protection filters and implement custom validation components
🧯 If You Can't Patch
- Restrict low-privileged user access to content authoring and form submission interfaces
- Implement web application firewall (WAF) rules to detect and block XSS payloads
🔍 How to Verify
Check if Vulnerable:
Check AEM version via OSGi console: http://[aem-host]:[port]/system/console/bundles or via CRXDE Lite package manager.Check Version:
curl -u admin:admin http://localhost:4502/system/console/bundles/org.apache.sling.installer.core | grep 'Bundle-Version'Verify Fix Applied:
Verify AEM version is 6.5.23 or later and test form fields with XSS payloads to confirm they're properly sanitized.📡 Detection & Monitoring
Log Indicators:
- Unusual content modifications by low-privileged users
- Suspicious script tags or JavaScript in content submissions
Network Indicators:
- HTTP requests containing XSS payload patterns to form submission endpoints
SIEM Query:
source="aem-access.log" AND ("script" OR "javascript:" OR "onload=" OR "onerror=") AND status=200