CVE-2025-49552
📋 TL;DR
Adobe Connect versions 12.9 and earlier contain a DOM-based XSS vulnerability that allows high-privileged attackers to execute malicious scripts in victims' browsers. Exploitation requires user interaction where victims visit a crafted webpage, potentially leading to session takeover. This affects Adobe Connect users with high-privileged accounts.
💻 Affected Systems
- Adobe Connect
📦 What is this software?
Connect by Adobe
⚠️ Risk & Real-World Impact
Worst Case
Complete session takeover leading to unauthorized access to sensitive meeting data, administrative controls, and potential lateral movement within the Adobe Connect environment.
Likely Case
Attacker steals session cookies to impersonate legitimate users, accessing their meetings, recordings, and personal information within the Connect platform.
If Mitigated
With proper input validation and output encoding, the attack fails to execute malicious scripts, maintaining session integrity.
🎯 Exploit Status
Exploitation requires high-privileged attacker account and social engineering to get victim to visit malicious page.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Adobe Connect 12.10 or later
Vendor Advisory: https://helpx.adobe.com/security/products/connect/apsb25-70.html
Restart Required: Yes
Instructions:
1. Download Adobe Connect 12.10 or later from Adobe's official site. 2. Backup current configuration and data. 3. Install the update following Adobe's upgrade documentation. 4. Restart the Connect service. 5. Verify the update was successful.
🔧 Temporary Workarounds
Implement Content Security Policy
allAdd strict CSP headers to prevent execution of unauthorized scripts
Add 'Content-Security-Policy' header with appropriate directives to web server configuration
Input Validation Filtering
allImplement server-side input validation for all user-controlled data
Implement input sanitization in application code to filter script tags and event handlers
🧯 If You Can't Patch
- Restrict high-privileged account access to only essential personnel
- Implement web application firewall with XSS protection rules
🔍 How to Verify
Check if Vulnerable:
Check Adobe Connect version in administration console or via version file in installation directoryCheck Version:
Check admin console or view version.txt in Connect installation directoryVerify Fix Applied:
Verify version is 12.10 or later and test XSS payloads are properly sanitized📡 Detection & Monitoring
Log Indicators:
- Unusual script tags in URL parameters
- Suspicious JavaScript execution in user sessions
- Multiple failed login attempts from same session
Network Indicators:
- Malicious script payloads in HTTP requests
- Unexpected redirects to external domains
SIEM Query:
source="adobe_connect" AND (url="*<script>*" OR url="*javascript:*" OR url="*onerror=*" OR url="*onload=*")