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How CVE-2025-46857 Works
CVE-2025-46857 is a reflected Cross-Site Scripting (XSS) vulnerability in Adobe Experience Manager (AEM) versions 6.5.22 and earlier. The flaw occurs due to improper input sanitization in web request parameters. When a maliciously crafted URL containing JavaScript payloads is processed by AEM, the server reflects the payload back in the HTTP response without proper encoding. If an authenticated victim clicks the attacker-supplied link, the script executes in their browser session, potentially leading to session hijacking, data theft, or privilege escalation. The attack requires low privileges and relies on social engineering to trigger.
DailyCVE Form
Platform: Adobe Experience Manager
Version: ≤ 6.5.22
Vulnerability: Reflected XSS
Severity: Critical
Date: 06/12/2025
Prediction: Patch expected by 07/15/2025
What Undercode Say:
Exploitation
1. Craft malicious URL:
https://vulnerable-aem-instance/content/page.html?param=<script>alert(document.cookie)</script>
2. Social engineering: Phish victims via email or chat to click the link.
3. Session hijacking: Steal cookies via `XMLHttpRequest` to attacker-controlled server.
Detection
1. Scan for vulnerable endpoints:
grep -r "request.getParameter" /aem/codebase
2. Test inputs: Use Burp Suite or OWASP ZAP with XSS payloads.
Mitigation
1. Input sanitization:
String safeParam = ESAPI.encoder().encodeForHTML(request.getParameter("param"));
2. Content Security Policy (CSP):
Content-Security-Policy: default-src 'self'; script-src 'unsafe-inline'
3. Patch: Apply Adobe security update post-release.
Analytics
- Attack surface: High due to AEM’s widespread use in enterprises.
- Exploitability: Low complexity, no prerequisites.
- Impact: Critical (CIA triad compromise).
References
Sources:
Reported By: nvd.nist.gov
Extra Source Hub:
Undercode
