CVE-2025-46939
📋 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, defacement of web pages, or limited data exfiltration from user browsers.
If Mitigated
With proper input validation and output encoding, the vulnerability would be prevented entirely.
🎯 Exploit Status
Exploitation requires authenticated low-privileged access to vulnerable form fields.
🛠️ 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. Apply the update to all affected instances. 4. Restart the AEM service.
🔧 Temporary Workarounds
Input Validation and Output Encoding
allImplement strict input validation and proper output encoding for all form fields to prevent XSS payloads from being stored and executed.
Content Security Policy (CSP)
allImplement a strict Content Security Policy header to restrict script execution sources and mitigate XSS impact.
🧯 If You Can't Patch
- Implement web application firewall (WAF) rules to block XSS payloads in form submissions.
- Restrict low-privileged user access to vulnerable form fields and implement additional monitoring for suspicious form submissions.
🔍 How to Verify
Check if Vulnerable:
Check Adobe Experience Manager version via AEM Web Console (/system/console) or by examining the AEM installation directory for version files.Check Version:
Check CRX Package Manager or AEM Web Console for version information.Verify Fix Applied:
Verify the version is 6.5.23 or later and test form fields with XSS payloads to ensure they are properly sanitized.📡 Detection & Monitoring
Log Indicators:
- Unusual form submissions with script tags or JavaScript code
- Multiple failed login attempts followed by form submissions
Network Indicators:
- HTTP requests containing script tags or JavaScript in form parameters
- Unusual outbound connections from user browsers after visiting AEM pages
SIEM Query:
source="aem_logs" AND ("<script>" OR "javascript:" OR "onerror=" OR "onload=")