CVE-2025-46983

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 AEM versions 6.5.22 and earlier.

💻 Affected Systems

Products:
  • Adobe Experience Manager
Versions: 6.5.22 and earlier
Operating Systems: All platforms running AEM
Default Config Vulnerable: ⚠️ Yes
Notes: Requires low-privileged attacker access to vulnerable form fields. All deployment types (on-premise, cloud, hybrid) are affected.

📦 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 session tokens from other users, potentially escalating privileges or accessing unauthorized data.

🟢

If Mitigated

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

🌐 Internet-Facing: HIGH
🏢 Internal Only: MEDIUM

🎯 Exploit Status

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

Exploitation requires authenticated low-privileged access. The vulnerability is in form fields where user input isn't properly sanitized.

🛠️ 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 or later from Adobe's distribution portal. 2. Apply the service pack following Adobe's upgrade documentation. 3. Restart the AEM instance. 4. Verify the update was successful.

🔧 Temporary Workarounds

Input Validation Filter

all

Implement custom servlet filters to sanitize user input in form fields

Implement Java servlet filter with OWASP Java Encoder library for output encoding

Content Security Policy

all

Implement strict CSP headers to mitigate XSS impact

Add 'Content-Security-Policy: default-src 'self'; script-src 'self'' to HTTP headers

🧯 If You Can't Patch

  • Implement web application firewall (WAF) rules to block XSS payloads
  • Restrict low-privileged user access to content authoring interfaces

🔍 How to Verify

Check if Vulnerable:

Check AEM version via OSGi console or CRXDE. If version is 6.5.22 or earlier, system is vulnerable.

Check Version:

curl -u admin:password http://localhost:4502/system/console/status-productinfo | grep 'Adobe Experience Manager'

Verify Fix Applied:

After patching, verify version is 6.5.23 or later. Test form fields with basic XSS payloads to confirm sanitization.

📡 Detection & Monitoring

Log Indicators:

  • Unusual content modifications by low-privileged users
  • JavaScript payloads in request logs for form submissions

Network Indicators:

  • Unexpected script tags in HTTP responses from AEM forms

SIEM Query:

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

🔗 References

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