CVE-2025-46934
📋 TL;DR
Adobe Experience Manager versions 6.5.22 and earlier contain a stored cross-site scripting vulnerability in form fields. Low-privileged attackers can inject malicious JavaScript that executes in victims' browsers when they visit compromised pages. This affects all organizations running vulnerable AEM instances.
💻 Affected Systems
- Adobe Experience Manager
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Attackers could steal session cookies, perform actions as authenticated users, redirect to malicious sites, or deploy additional malware payloads.
Likely Case
Session hijacking, credential theft, defacement of web pages, or limited data exfiltration from user browsers.
If Mitigated
With proper input validation and output encoding, the risk is reduced to minimal, though the vulnerability still exists.
🎯 Exploit Status
Requires authenticated access but low technical skill to exploit once access is obtained.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 6.5.23 or later
Vendor Advisory: https://helpx.adobe.com/security/products/experience-manager/apsb25-48.html
Restart Required: Yes
Instructions:
1. Backup your AEM instance. 2. Download and apply AEM 6.5.23 or later from Adobe's distribution portal. 3. Follow Adobe's upgrade documentation. 4. Restart the AEM service. 5. Verify the update was successful.
🔧 Temporary Workarounds
Input Validation Filter
allImplement custom servlet filters to sanitize form field inputs before processing
Implement Java servlet filter with OWASP Java Encoder library for input sanitization
Content Security Policy
allImplement strict CSP headers to limit script execution
Add 'Content-Security-Policy: script-src 'self'' to HTTP response headers
🧯 If You Can't Patch
- Implement web application firewall (WAF) rules to block XSS payloads
- Restrict low-privileged user access to content creation/modification
🔍 How to Verify
Check if Vulnerable:
Check AEM version via CRXDE Lite or system console. If version is 6.5.22 or earlier, system is vulnerable.Check Version:
curl -u admin:password http://localhost:4502/system/console/status-productinfo | grep 'Adobe Experience Manager'Verify Fix Applied:
After patching, verify version is 6.5.23 or later. Test form fields with basic XSS payloads to confirm sanitization.📡 Detection & Monitoring
Log Indicators:
- Unusual content modifications by low-privileged users
- JavaScript payloads in form submission logs
- Multiple failed XSS attempts
Network Indicators:
- Suspicious script tags in HTTP POST requests to form endpoints
- Unexpected external script loads from AEM pages
SIEM Query:
source="aem-access.log" AND ("<script>" OR "javascript:" OR "onerror=" OR "onload=")