CVE-2025-54272
📋 TL;DR
Adobe Experience Manager versions 11.6 and earlier contain a stored XSS vulnerability where low-privileged attackers can inject malicious scripts into form fields. When victims visit pages containing these compromised fields, their browsers execute the attacker's JavaScript. This affects all users of vulnerable AEM instances, requiring user interaction via malicious links.
💻 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 through the victim's browser.
Likely Case
Session hijacking, credential theft, or defacement of AEM content through injected scripts that execute in users' browsers.
If Mitigated
Limited impact with proper input validation, output encoding, and Content Security Policy (CSP) headers preventing script execution.
🎯 Exploit Status
Requires authenticated low-privileged access and user interaction. Stored XSS persists until cleaned.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Update to version after 11.6 (check vendor advisory for specific fixed version)
Vendor Advisory: https://helpx.adobe.com/security/products/aem-screens/apsb25-98.html
Restart Required: No
Instructions:
1. Review APSB25-98 advisory. 2. Apply Adobe-provided security updates. 3. Verify update installation. 4. Test affected functionality.
🔧 Temporary Workarounds
Implement Content Security Policy
allDeploy strict CSP headers to restrict script execution sources
Input Validation Sanitization
allAdd server-side validation and output encoding for all user inputs
🧯 If You Can't Patch
- Restrict low-privileged user access to vulnerable form fields
- Implement web application firewall (WAF) rules to block XSS payloads
🔍 How to Verify
Check if Vulnerable:
Check AEM version via Admin Console or CRX Package Manager. If version is 11.6 or earlier, system is vulnerable.Check Version:
Check via AEM Admin Console or run: curl -k https://[aem-host]:[port]/system/console/status-productinfoVerify Fix Applied:
Verify updated version number and test form field inputs with basic XSS payloads (e.g., <script>alert('test')</script>) to ensure sanitization.📡 Detection & Monitoring
Log Indicators:
- Unusual form submissions with script tags
- Multiple failed XSS attempts in access logs
- Suspicious user agent strings containing script patterns
Network Indicators:
- HTTP requests containing <script> tags in parameters
- Unusual outbound connections from AEM server after form submissions
SIEM Query:
source="aem_access.log" AND ("<script" OR "javascript:" OR "onerror=" OR "onload=")