CVE-2025-64852

5.4 MEDIUM

📋 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, potentially compromising user sessions or stealing sensitive data. Organizations running Adobe Experience Manager versions 6.5.23 and earlier are affected.

💻 Affected Systems

Products:
  • Adobe Experience Manager
Versions: 6.5.23 and earlier
Operating Systems: All supported platforms
Default Config Vulnerable: ⚠️ Yes
Notes: Requires low-privileged attacker access to vulnerable form fields. All deployment types (on-premise, cloud) are affected.

📦 What is this software?

⚠️ Risk & Real-World Impact

🔴

Worst Case

Attackers could steal administrator credentials, hijack user sessions, deface websites, or redirect users to malicious sites, potentially leading to complete system compromise.

🟠

Likely Case

Attackers with low privileges could steal user session cookies, perform actions on behalf of authenticated users, or capture sensitive form data.

🟢

If Mitigated

With proper input validation and output encoding, the impact is limited to unsuccessful injection attempts that get sanitized before execution.

🌐 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: 6.5.24 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 official distribution channels. 2. Follow Adobe's upgrade documentation for your specific 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 Filter

all

Implement custom servlet filters to sanitize all user input before processing

Implement custom Java servlet filter with input validation logic

Content Security Policy

all

Implement strict CSP headers to limit script execution

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

🧯 If You Can't Patch

  • Implement web application firewall (WAF) rules to block XSS payloads
  • Disable or restrict low-privileged user access to vulnerable form fields

🔍 How to Verify

Check if Vulnerable:

Check AEM version via CRXDE Lite or system console. If version is 6.5.23 or earlier, system is vulnerable.

Check Version:

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

Verify Fix Applied:

After patching, verify version is 6.5.24 or later. Test form fields with XSS payloads to ensure sanitization.

📡 Detection & Monitoring

Log Indicators:

  • Unusual POST requests to form endpoints with script tags
  • Multiple failed login attempts followed by form submissions

Network Indicators:

  • HTTP requests containing <script> tags in form parameters
  • Unusual outbound connections from AEM server after form submissions

SIEM Query:

source="aem_access.log" AND ("<script>" OR "javascript:" OR "onclick=" OR "onload=")

🔗 References

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