CVE-2024-52854
📋 TL;DR
Adobe Experience Manager versions 6.5.21 and earlier contain a stored Cross-Site Scripting (XSS) vulnerability where 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 install malware through drive-by downloads.
Likely Case
Session hijacking, credential theft, defacement of web content, or data exfiltration from user browsers.
If Mitigated
Limited impact with proper input validation, output encoding, and Content Security Policy (CSP) headers in place.
🎯 Exploit Status
Requires attacker to have access to inject content into vulnerable fields. Stored XSS means payload persists until cleaned.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 6.5.22 or later
Vendor Advisory: https://helpx.adobe.com/security/products/experience-manager/apsb24-69.html
Restart Required: Yes
Instructions:
1. Download AEM 6.5.22 or later from Adobe distribution portal. 2. Apply service pack following Adobe's upgrade documentation. 3. Restart AEM instances. 4. Verify successful upgrade.
🔧 Temporary Workarounds
Input Validation and Output Encoding
allImplement server-side validation and proper output encoding for all user inputs in form fields.
Content Security Policy
allImplement strict CSP headers to restrict script execution sources.
🧯 If You Can't Patch
- Restrict user permissions to minimize who can edit content in vulnerable form fields.
- Implement web application firewall (WAF) rules to block XSS payload patterns.
🔍 How to Verify
Check if Vulnerable:
Check AEM version via OSGi console or CRXDE. If version is 6.5.21 or earlier, system is vulnerable.Check Version:
curl -u admin:password http://localhost:4502/system/console/status-productinfo.json | grep 'Adobe Experience Manager'Verify Fix Applied:
After patching, verify version is 6.5.22 or later and test form fields for XSS payloads.📡 Detection & Monitoring
Log Indicators:
- Unusual content edits in form fields
- Script tags or JavaScript in content submissions
Network Indicators:
- Unexpected script loads from user content
- Suspicious outbound connections from user browsers
SIEM Query:
source="aem-access.log" AND ("script" OR "javascript" OR "onload" OR "onerror")