CVE-2025-46910
📋 TL;DR
Adobe Experience Manager versions 6.5.22 and earlier contain a stored XSS vulnerability where low-privileged attackers can inject malicious scripts into form fields. When users visit pages containing these compromised fields, their browsers execute the attacker's JavaScript. This affects organizations using vulnerable AEM instances for content management.
💻 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 additional malware payloads through the compromised browser sessions.
Likely Case
Session hijacking, credential theft, or defacement of web content through injected scripts that execute in victims' browsers.
If Mitigated
Limited impact with proper input validation, output encoding, and Content Security Policy (CSP) headers in place.
🎯 Exploit Status
Requires authenticated low-privilege access. Exploitation involves injecting scripts into vulnerable form fields that persist and execute when viewed.
🛠️ 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 AEM 6.5.23 or later from Adobe's distribution portal. 3. Follow Adobe's upgrade documentation for your specific deployment. 4. Restart the AEM service. 5. Verify the update completed successfully.
🔧 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 encoding for all user inputs in form fields.
Configure AEM's XSS protection filters and implement custom validation servlets
🧯 If You Can't Patch
- Restrict low-privileged user access to content creation/modification capabilities
- 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://[host]:[port]/system/console/bundles) or CRXDE Lite. Verify if version is 6.5.22 or earlier.Check Version:
curl -s http://localhost:4502/system/console/bundles | grep 'Adobe Experience Manager'Verify Fix Applied:
Confirm AEM version is 6.5.23 or later. Test form fields with safe XSS payloads to ensure they're properly sanitized.📡 Detection & Monitoring
Log Indicators:
- Unusual content modifications by low-privileged users
- Script tags or JavaScript patterns in content update requests
Network Indicators:
- HTTP requests containing script injection patterns to form submission endpoints
SIEM Query:
source="aem-access.log" AND ("<script" OR "javascript:" OR "onerror=" OR "onload=")