CVE-2025-27205
📋 TL;DR
Adobe Experience Manager Screens versions FP11.3 and earlier contain a stored cross-site scripting vulnerability that allows low-privileged attackers to inject malicious scripts into form fields. When victims browse to pages containing these compromised fields, their browsers execute the attacker's JavaScript. This affects all organizations using vulnerable versions of Adobe Experience Manager Screens.
💻 Affected Systems
- Adobe Experience Manager Screens
📦 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 install malware on victim systems.
Likely Case
Session hijacking, credential theft, or defacement of web pages through injected content.
If Mitigated
Limited impact due to same-origin policy restrictions and requirement for user interaction with malicious links.
🎯 Exploit Status
Exploitation requires authenticated low-privileged access and victim interaction with crafted links.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: FP11.4 or later
Vendor Advisory: https://helpx.adobe.com/security/products/aem-screens/apsb25-32.html
Restart Required: Yes
Instructions:
1. Download Adobe Experience Manager Screens FP11.4 or later from Adobe's distribution portal. 2. Apply the update following Adobe's installation guide. 3. Restart the AEM instance. 4. Verify the update was successful.
🔧 Temporary Workarounds
Input Validation Enhancement
allImplement additional input validation and output encoding for form fields
Configure AEM's XSS protection filters and implement custom validation servlets
Content Security Policy
allImplement strict Content Security Policy headers to limit script execution
Add 'Content-Security-Policy: default-src 'self'; script-src 'self'' to web server configuration
🧯 If You Can't Patch
- Restrict low-privileged user access to form editing capabilities
- Implement web application firewall rules to detect and block XSS payloads
🔍 How to Verify
Check if Vulnerable:
Check AEM package manager for installed version of Adobe Experience Manager ScreensCheck Version:
Navigate to AEM Package Manager and check installed version of 'Adobe Experience Manager Screens'Verify Fix Applied:
Verify version is FP11.4 or later and test form fields for proper input sanitization📡 Detection & Monitoring
Log Indicators:
- Unusual form submissions with script tags or JavaScript payloads
- Multiple failed input validation attempts
Network Indicators:
- HTTP requests containing suspicious script payloads in form parameters
SIEM Query:
source="aem_logs" AND ("<script>" OR "javascript:" OR "onerror=" OR "onload=")