Listen to this Post
How CVE-2025-46870 Works
CVE-2025-46870 is a stored Cross-Site Scripting (XSS) vulnerability in Adobe Experience Manager (AEM) versions 6.5.22 and earlier. Attackers with low privileges can inject malicious JavaScript into vulnerable form fields, which persists in the database. When a victim accesses a page containing the compromised field, the script executes in their browser, potentially leading to session hijacking, data theft, or unauthorized actions. The vulnerability arises due to insufficient input sanitization in form submission handlers, allowing arbitrary script injection.
DailyCVE Form:
Platform: Adobe Experience Manager
Version: ≤ 6.5.22
Vulnerability: Stored XSS
Severity: Critical
Date: 06/12/2025
Prediction: Patch by 07/15/2025
What Undercode Say:
Exploitation:
1. Identify Vulnerable Form Fields:
POST /content/forms/af/injectable-form HTTP/1.1 Host: target-aem-instance Content-Type: application/x-www-form-urlencoded ... maliciousField=<script>alert(document.cookie)</script>
2. Bypass Sanitization:
Use Unicode/HTML encoding:
&x3C;script&x3E;maliciousPayload()&x3C;/script&x3E;
Protection:
1. Input Validation:
// AEM Servlet Filter Example
public void doFilter(ServletRequest req, ServletResponse res, FilterChain chain) {
String input = req.getParameter("field");
if (input.matches("[\w\s-]+")) {
chain.doFilter(req, res);
} else {
throw new IllegalArgumentException("Invalid input");
}
}
2. Output Encoding:
Use HTL (Sightly) encoding:
<div>${maliciousInput @ context='text'}</div>
3. Patch Verification:
curl -I https://experience.adobe.com | grep "X-AEM-Version"
4. WAF Rules:
location /content/forms/ {
modsecurity_rules 'SecRule ARGS "@detectXSS" deny';
}
Analytics:
- Exploit Prevalence: High (due to ease of injection).
- Attack Surface: Web forms, custom components.
- Mitigation Complexity: Medium (requires code/config updates).
Sources:
Reported By: nvd.nist.gov
Extra Source Hub:
Undercode
