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How CVE-2025-46844 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 payloads. When a victim accesses a compromised page, the stored script executes in their browser session, potentially leading to session hijacking, data theft, or unauthorized actions under the victim’s credentials. The vulnerability arises due to insufficient input validation in the WCM (Web Content Management) component, where crafted HTML/JS persists in the content repository.
DailyCVE Form:
Platform: Adobe Experience Manager
Version: ≤ 6.5.22
Vulnerability: Stored XSS
Severity: Critical
Date: 2025-06-13
Prediction: Patch by 2025-07-15
What Undercode Say:
Exploitation:
1. Payload Injection:
<script>alert(document.cookie)</script>
Inserted via form submissions or API calls.
2. Persistence:
Malicious scripts remain in AEM’s content repository until manually purged.
3. Trigger:
Victims trigger the payload when rendering the compromised page.
Protection:
1. Input Sanitization:
// Example OWASP Sanitizer usage import org.owasp.html.PolicyFactory; PolicyFactory sanitizer = new HtmlPolicyBuilder().toFactory(); String clean = sanitizer.sanitize(userInput);
2. AEM Filter:
Configure Sling XSS Protection:
<filter> <name>XSS-Protection</name> <component>org.apache.sling.xss.impl.XSSFilterImpl</component> </filter>
3. Patch Verification:
aemcli --version | grep "6.5.23"
4. Mitigation (Pre-Patch):
- Disable risky form fields.
- Apply CSP headers:
Content-Security-Policy: default-src 'self'; script-src 'unsafe-inline'
5. Exploit Detection:
grep -r "<script>" /var/aem/repository/
6. Log Analysis:
tail -f /var/log/aem/error.log | grep "XSS"
7. Workaround:
Use AEM’s built-in XSSAPI:
var xss = $.use("xssAPI");
xss.encodeForHTML(userInput);
8. CVE-Specific Fix:
Upgrade to AEM 6.5.23+, which enforces stricter input validation.
No further commentary.
Sources:
Reported By: nvd.nist.gov
Extra Source Hub:
Undercode
