CVE-2025-46894

5.4 MEDIUM

📋 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

Products:
  • Adobe Experience Manager
Versions: 6.5.22 and earlier
Operating Systems: All platforms running Adobe Experience Manager
Default Config Vulnerable: ⚠️ Yes
Notes: Requires low-privileged attacker access to vulnerable form fields. All deployments with affected versions are vulnerable.

📦 What is this software?

⚠️ Risk & Real-World Impact

🔴

Worst Case

Attackers could steal administrator session cookies, perform actions as authenticated users, deface websites, or redirect users to malicious sites.

🟠

Likely Case

Attackers with low privileges could steal user session data, perform limited actions within the application, or deploy basic phishing attacks.

🟢

If Mitigated

With proper input validation and output encoding, the vulnerability would be prevented, though the underlying code flaw would remain.

🌐 Internet-Facing: HIGH
🏢 Internal Only: MEDIUM

🎯 Exploit Status

Public PoC: ✅ No
Weaponized: UNKNOWN
Unauthenticated Exploit: ✅ No
Complexity: LOW

Exploitation requires low-privileged access to vulnerable form fields. The vulnerability is well-understood (CWE-79) with common exploitation patterns.

🛠️ 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 channels. 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 to complete the installation.

🔧 Temporary Workarounds

Input Validation Filter

all

Implement server-side input validation to sanitize user input in form fields

Configure AEM's XSS protection filters via OSGi configuration

Content Security Policy

all

Implement Content Security Policy headers to restrict script execution

Add 'Content-Security-Policy' header to HTTP responses

🧯 If You Can't Patch

  • Restrict low-privileged user access to content creation and editing capabilities
  • 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/status-productinfo endpoint. If version is 6.5.22 or earlier, the system is vulnerable.

Check Version:

curl -k https://<aem-host>:<port>/system/console/status-productinfo | grep 'Adobe Experience Manager'

Verify Fix Applied:

Verify AEM version is 6.5.23 or later. Test form fields with safe XSS payloads to confirm they are properly sanitized.

📡 Detection & Monitoring

Log Indicators:

  • Unusual content creation/modification patterns
  • Requests containing script tags or JavaScript in form parameters

Network Indicators:

  • HTTP requests with suspicious script payloads in POST data
  • Unexpected JavaScript execution in browser responses

SIEM Query:

source="aem-access.log" AND ("<script" OR "javascript:" OR "onload=" OR "onerror=")

🔗 References

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