CVE-2024-20719
📋 TL;DR
This stored Cross-Site Scripting (XSS) vulnerability in Adobe Commerce allows an authenticated admin attacker to inject malicious JavaScript into admin pages. When other admin users view these pages, the scripts execute in their browsers, potentially enabling session hijacking or privilege escalation. The vulnerability affects Adobe Commerce versions 2.4.6-p3, 2.4.5-p5, 2.4.4-p6 and earlier.
💻 Affected Systems
- Adobe Commerce
- Magento Open Source
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
An attacker with admin access could inject malicious scripts that steal session cookies or credentials from other admin users, leading to complete compromise of the Adobe Commerce instance and potentially customer data exposure.
Likely Case
Malicious admin user or compromised admin account could execute JavaScript in other admin users' browsers to perform actions as those users, potentially modifying store settings, accessing sensitive data, or installing backdoors.
If Mitigated
With proper access controls, strong admin authentication, and Content Security Policy headers, the impact is limited to the specific admin user's session being compromised rather than full system takeover.
🎯 Exploit Status
Exploitation requires admin credentials but is technically simple once authenticated. The vulnerability is stored XSS, making it persistent and affecting all admin users who view the compromised pages.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Update to Adobe Commerce 2.4.6-p4, 2.4.5-p6, 2.4.4-p7 or later
Vendor Advisory: https://helpx.adobe.com/security/products/magento/apsb24-03.html
Restart Required: No
Instructions:
1. Backup your Adobe Commerce instance and database. 2. Apply the security patch via Composer: composer require magento/product-community-edition=2.4.6-p4 (adjust version as needed). 3. Run setup upgrade: bin/magento setup:upgrade. 4. Clear cache: bin/magento cache:clean.
🔧 Temporary Workarounds
Implement Content Security Policy
allAdd Content Security Policy headers to restrict script execution sources
Add to .htaccess or web server config: Header set Content-Security-Policy "script-src 'self' 'unsafe-inline' 'unsafe-eval'; object-src 'none'"
Restrict Admin Access
allLimit admin access to trusted IP addresses only
Add to .htaccess in admin directory: Require ip 192.168.1.0/24 (adjust for your network)
🧯 If You Can't Patch
- Implement strict admin access controls and multi-factor authentication
- Monitor admin user activity logs for suspicious behavior
🔍 How to Verify
Check if Vulnerable:
Check Adobe Commerce version via admin panel or run: php bin/magento --versionCheck Version:
php bin/magento --versionVerify Fix Applied:
Verify version is 2.4.6-p4, 2.4.5-p6, 2.4.4-p7 or later using: php bin/magento --version📡 Detection & Monitoring
Log Indicators:
- Unusual admin user activity patterns
- Multiple failed login attempts to admin panel
- Admin session anomalies
Network Indicators:
- Unexpected JavaScript payloads in admin requests
- Suspicious outbound connections from admin sessions
SIEM Query:
source="*commerce*" AND ("admin" OR "magento_admin") AND (javascript OR script OR eval OR document.cookie)