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How CVE-2025-46854 Works
Adobe Experience Manager (AEM) 6.5.22 and earlier fails to properly sanitize user-supplied input in web form fields, allowing attackers with low privileges to inject malicious JavaScript payloads. When stored in the backend, this script executes whenever a victim accesses the compromised page. The attack leverages improper output encoding in AEM’s WCM (Web Content Management) components, enabling persistent XSS. The vulnerability resides in the Sling framework’s handling of POST requests, where input validation is bypassed during form submission.
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 Commands
1. Crafting Malicious Payload:
<script>alert(document.cookie)</script>
2. Exploit via Curl:
curl -X POST -d "field=<script>exploit_code()</script>" http://target/aem/formsubmit
3. Automated Testing with Burp Suite:
Intercept form submissions, inject XSS payloads into all text fields.
Protection Measures
1. Input Sanitization:
import org.apache.commons.text.StringEscapeUtils; String sanitized = StringEscapeUtils.escapeHtml4(userInput);
2. AEM Filter Configuration:
<filter> <filter-name>XSSProtection</filter-name> <filter-class>com.adobe.granite.xss.XSSFilter</filter-class> </filter>
3. Content Security Policy (CSP):
Content-Security-Policy: default-src 'self'; script-src 'unsafe-inline'
Detection Scripts
1. Check AEM Version:
curl -I http://target/aem/ | grep "X-AEM-Version"
2. XSS Scanner (Python):
import requests
payloads = ["<script>alert(1)</script>", "javascript:alert(1)"]
for payload in payloads:
r = requests.post(target_url, data={"field": payload})
if payload in r.text:
print(f"Vulnerable: {payload}")
Patch Verification
After update, confirm mitigation:
grep "6.5.23" /aem/crx-quickstart/logs/error.log
Analytics
- Attack Vector: Low-privilege users exploit form fields.
- Impact: Session hijacking, phishing.
- Mitigation Complexity: Medium (requires Sling framework updates).
Sources:
Reported By: nvd.nist.gov
Extra Source Hub:
Undercode
