CVE-2024-36192
📋 TL;DR
This stored Cross-Site Scripting (XSS) vulnerability in Adobe Experience Manager allows attackers to inject malicious JavaScript into vulnerable form fields. When users visit pages containing these compromised fields, their browsers execute the attacker's scripts. This affects Adobe Experience Manager versions 6.5.20 and earlier.
💻 Affected Systems
- Adobe Experience Manager
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Attackers could steal user session cookies, perform actions as authenticated users, redirect to malicious sites, or install malware through drive-by downloads.
Likely Case
Session hijacking, credential theft, defacement of web pages, or redirection to phishing sites.
If Mitigated
Limited impact with proper input validation, output encoding, and Content Security Policy (CSP) headers in place.
🎯 Exploit Status
Requires authenticated access to inject malicious scripts into form fields, but victims can be unauthenticated users visiting affected pages.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 6.5.21 or later
Vendor Advisory: https://helpx.adobe.com/security/products/experience-manager/apsb24-28.html
Restart Required: Yes
Instructions:
1. Download Adobe Experience Manager 6.5.21 or later from Adobe's distribution portal. 2. Apply the service pack following Adobe's installation guide. 3. Restart the AEM instance. 4. Verify the update was successful.
🔧 Temporary Workarounds
Implement Content Security Policy
allAdd CSP headers to restrict script execution sources and prevent inline script execution.
Add 'Content-Security-Policy: script-src 'self';' to web server configuration
Input Validation Filter
allImplement server-side input validation to sanitize form field inputs.
Configure AEM's XSS protection filter in /system/console/configMgr
🧯 If You Can't Patch
- Disable or restrict access to vulnerable form components in AEM
- Implement web application firewall (WAF) rules to block XSS payloads
🔍 How to Verify
Check if Vulnerable:
Check AEM version via the welcome screen or system console. Versions 6.5.20 and earlier are vulnerable.Check Version:
Navigate to AEM welcome screen or check /system/console/status-productinfo endpointVerify Fix Applied:
Verify AEM version is 6.5.21 or later and test form fields for XSS payload acceptance.📡 Detection & Monitoring
Log Indicators:
- Unusual POST requests to form endpoints with script tags
- Requests containing common XSS payload patterns like <script>alert()</script>
Network Indicators:
- HTTP requests with JavaScript payloads in form parameters
- Unexpected outbound connections from user browsers after visiting AEM pages
SIEM Query:
source="aem_logs" AND ("<script" OR "javascript:" OR "onerror=" OR "onload=")