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How CVE-2025-46842 Works
Adobe Experience Manager (AEM) 6.5.22 and earlier fails to properly sanitize user-supplied input in form fields, allowing attackers with low privileges to inject malicious JavaScript payloads. When stored in the backend, this payload executes in the context of a victim’s browser upon accessing the compromised page. The vulnerability arises due to insufficient input validation in the WCM (Web Content Management) component, where crafted HTML/script tags bypass filters. Attackers exploit this by submitting malicious content through form submissions or direct API calls, leading to session hijacking, phishing, or malware delivery.
DailyCVE Form
Platform: Adobe Experience Manager
Version: ≤ 6.5.22
Vulnerability: Stored XSS
Severity: Critical
Date: 06/13/2025
Prediction: Patch expected by 07/15/2025
What Undercode Say:
Exploitation Analysis
- Payload Injection: Submit malicious JavaScript via form fields (e.g.,
"><script>alert(document.cookie)</script>).
2. Persistence: Payload saves to AEM’s JCR repository.
- Execution: Victims trigger payload when rendering the page.
Protection Measures
1. Input Sanitization:
// OOTB AEM filter example
PolicyFactory policy = new HtmlPolicyBuilder()
.allowElements("div", "p")
.toFactory();
String safeHtml = policy.sanitize(untrustedInput);
2. CSP Headers:
Content-Security-Policy: default-src 'self'; script-src 'unsafe-inline' 'unsafe-eval'
3. Disable Risky Components:
curl -u admin:password -X POST -F "enabled=false" http://aem-instance/system/console/components/com.adobe.cq.xss.protection.impl.XSSFilter
Detection Commands
1. Scan for Vulnerable Forms:
grep -r "sling:resourceType=\"cq/Page\"" /apps
2. Log Analysis:
tail -f /var/log/aem/error.log | grep "XSSFilter"
Patch Workaround
1. Temporary Fix:
<!-- Override vulnerable component --> <component> <resourceType>cq/Page</resourceType> <script>disableXSSFilters=false</script> </component>
Expected Patch Notes
Adobe will likely enforce stricter input validation in the WCM core component (com.adobe.cq.wcm.core.components) and update the XSSFilter service.
Analytics based on NVD CVSS 4.0: AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H
Sources:
Reported By: nvd.nist.gov
Extra Source Hub:
Undercode
