CVE-2025-64796
📋 TL;DR
This stored 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. Organizations using Adobe Experience Manager versions 6.5.23 and earlier are affected.
💻 Affected Systems
- Adobe Experience Manager
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Attackers could steal administrator credentials, perform actions as authenticated users, deface websites, or redirect users to malicious sites, potentially leading to full system compromise.
Likely Case
Attackers with low privileges steal session cookies or credentials from other users, perform unauthorized actions within the application, or deploy client-side malware.
If Mitigated
With proper input validation and output encoding, the vulnerability would be prevented, though the underlying code flaw would still exist.
🎯 Exploit Status
Exploitation requires low-privileged access to vulnerable form fields. The vulnerability is well-understood (CWE-79) and similar XSS exploits are commonly available.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 6.5.24 or later
Vendor Advisory: https://helpx.adobe.com/security/products/experience-manager/apsb25-115.html
Restart Required: Yes
Instructions:
1. Download Adobe Experience Manager 6.5.24 or later from Adobe's distribution portal. 2. Follow Adobe's upgrade documentation for your deployment type. 3. Apply the update to all affected instances. 4. Restart the AEM service. 5. Verify the update was successful.
🔧 Temporary Workarounds
Input Validation and Output Encoding
allImplement strict input validation and output encoding for all user-controllable form fields to prevent script injection.
Content Security Policy (CSP)
allImplement a strict Content Security Policy header to mitigate the impact of successful XSS attacks.
🧯 If You Can't Patch
- Restrict low-privileged user access to vulnerable form fields and components.
- Implement web application firewall (WAF) rules to detect and block XSS payloads.
🔍 How to Verify
Check if Vulnerable:
Check Adobe Experience Manager version via AEM Web Console (/system/console/status-productinfo) or CRX Package Manager. If version is 6.5.23 or earlier, the system is vulnerable.Check Version:
curl -s http://[aem-host]:[port]/system/console/status-productinfo | grep 'Adobe Experience Manager'Verify Fix Applied:
After patching, verify the version is 6.5.24 or later using the same methods. Test form fields for XSS by attempting to inject basic script payloads.📡 Detection & Monitoring
Log Indicators:
- Unusual form submissions containing script tags or JavaScript code
- Multiple failed XSS attempts from same user
- Unexpected content modifications in form fields
Network Indicators:
- HTTP requests containing script injection patterns to form endpoints
- Unusual outbound connections from user browsers after visiting AEM pages
SIEM Query:
source="aem-access.log" AND ("<script" OR "javascript:" OR "onerror=" OR "onload=")