CVE-2025-46999
📋 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 Adobe Experience Manager 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, perform actions as authenticated users, redirect to malicious sites, or install malware via drive-by downloads.
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 stored content.
🛠️ 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 official distribution. 2. Follow Adobe's upgrade documentation for your deployment type (on-premise or cloud). 3. Restart the AEM instance after applying the update.
🔧 Temporary Workarounds
Implement Content Security Policy (CSP)
allAdd CSP headers to restrict script execution from untrusted sources.
Add 'Content-Security-Policy: script-src 'self'' to HTTP headers
Input Validation and Output Encoding
allSanitize user input in form fields and encode output to prevent script execution.
Implement OWASP XSS Prevention Cheat Sheet rules in custom components
🧯 If You Can't Patch
- Restrict low-privileged user access to content creation/modification features.
- Monitor and audit user-generated content for suspicious script patterns.
🔍 How to Verify
Check if Vulnerable:
Check Adobe Experience Manager version via AEM Web Console (/system/console/status-productinfo) or CRX Package Manager.Check Version:
curl -k https://<aem-host>:<port>/system/console/status-productinfo | grep 'Adobe Experience Manager'Verify Fix Applied:
Verify version is 6.5.23 or later and test form fields for XSS by attempting to inject script tags.📡 Detection & Monitoring
Log Indicators:
- Unusual content modifications by low-privileged users
- Requests containing script tags or JavaScript in form submissions
Network Indicators:
- Unexpected outbound connections from user browsers after visiting AEM pages
SIEM Query:
source="aem-access.log" AND ("<script" OR "javascript:" OR "onerror=" OR "onload=")