CVE-2025-64808

5.4 MEDIUM

📋 TL;DR

Adobe Experience Manager versions 6.5.23 and earlier contain a stored XSS vulnerability where low-privileged attackers can inject malicious scripts into form fields. When users visit pages containing these compromised fields, their browsers execute the attacker's JavaScript. This affects organizations using vulnerable AEM instances for content management.

💻 Affected Systems

Products:
  • Adobe Experience Manager
Versions: 6.5.23 and earlier
Operating Systems: All supported platforms
Default Config Vulnerable: ⚠️ Yes
Notes: Requires attacker to have at least low-privileged access to AEM instance.

📦 What is this software?

⚠️ Risk & Real-World Impact

🔴

Worst Case

Attackers could steal session cookies, perform actions as authenticated users, deface websites, or redirect users to malicious sites, potentially leading to full account compromise.

🟠

Likely Case

Attackers with low privileges could modify content to include malicious scripts, potentially stealing session tokens or performing limited actions as victims.

🟢

If Mitigated

With proper input validation and output encoding, malicious scripts would be neutralized, preventing execution in user browsers.

🌐 Internet-Facing: HIGH
🏢 Internal Only: MEDIUM

🎯 Exploit Status

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

Exploitation requires authenticated access with content creation/modification privileges.

🛠️ 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 AEM 6.5.24 or later from Adobe's distribution portal. 2. Follow Adobe's upgrade documentation for your deployment type (on-premise or cloud). 3. Apply the update package. 4. Restart AEM services. 5. Verify successful upgrade.

🔧 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 input sanitization

Content Security Policy

all

Implement strict CSP headers to prevent script execution from untrusted sources

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

🧯 If You Can't Patch

  • Restrict user permissions to only necessary content creation/modification areas
  • Implement web application firewall (WAF) rules to detect and block XSS payloads

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

Verify Fix Applied:

After patching, verify version is 6.5.24 or later and test form fields with XSS payloads to ensure they're properly sanitized.

📡 Detection & Monitoring

Log Indicators:

  • Unusual content modifications by low-privileged users
  • Script tags or JavaScript in form field submissions

Network Indicators:

  • Unexpected script loads in page responses
  • Suspicious outbound connections from user browsers

SIEM Query:

source="aem-access.log" AND ("script" OR "javascript" OR "onload" OR "onerror") AND user!="admin"

🔗 References

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