CVE-2025-46884

4.8 MEDIUM

📋 TL;DR

This stored XSS vulnerability in Adobe Experience Manager allows high-privileged attackers to inject malicious JavaScript into form fields. When users visit pages containing the compromised fields, their browsers execute the attacker's code. Only Adobe Experience Manager versions 6.5.22 and earlier are affected.

💻 Affected Systems

Products:
  • Adobe Experience Manager
Versions: 6.5.22 and earlier
Operating Systems: All supported platforms
Default Config Vulnerable: ⚠️ Yes
Notes: Requires high-privileged attacker access to exploit; affects both AEM Author and Publish instances.

📦 What is this software?

⚠️ Risk & Real-World Impact

🔴

Worst Case

High-privileged attacker steals administrator credentials, performs account takeover, and deploys backdoors or ransomware across the AEM environment.

🟠

Likely Case

Privileged insider or compromised admin account injects malicious scripts to steal session cookies, redirect users to phishing sites, or deface content.

🟢

If Mitigated

With proper input validation and output encoding, the attack fails to execute malicious scripts, limiting impact to unsuccessful injection attempts.

🌐 Internet-Facing: HIGH
🏢 Internal Only: HIGH

🎯 Exploit Status

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

Exploitation requires authenticated high-privileged access; stored XSS payloads persist until cleaned.

🛠️ 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 AEM 6.5.23+ from Adobe Distribution portal. 2. Apply Service Pack using Package Manager. 3. Restart AEM instance. 4. Verify update via /system/console/status-productinfo endpoint.

🔧 Temporary Workarounds

Input Validation Filter

all

Implement custom servlet filter to sanitize form field inputs before processing.

Deploy custom OSGi component with XSS filtering logic

Content Security Policy

all

Enable CSP headers to restrict script execution from untrusted sources.

Configure Apache Sling CSP settings via OSGi configuration

🧯 If You Can't Patch

  • Restrict high-privileged user accounts to minimum necessary personnel
  • Implement web application firewall with XSS protection rules

🔍 How to Verify

Check if Vulnerable:

Check AEM version via /system/console/status-productinfo endpoint; if version ≤6.5.22, system is vulnerable.

Check Version:

curl -u admin:password http://aem-host:port/system/console/status-productinfo | grep 'Adobe Experience Manager'

Verify Fix Applied:

After patching, confirm version is ≥6.5.23 and test form fields with XSS payloads like <script>alert('test')</script> to ensure sanitization.

📡 Detection & Monitoring

Log Indicators:

  • Unusual POST requests to form submission endpoints with script tags
  • Error logs showing XSS filter violations

Network Indicators:

  • HTTP requests containing <script> tags in form parameters
  • Unexpected JavaScript execution in browser sessions

SIEM Query:

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

🔗 References

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