CVE-2025-30314

6.1 MEDIUM

📋 TL;DR

Adobe Connect versions 12.8 and earlier contain a stored Cross-Site Scripting vulnerability where attackers can inject malicious JavaScript into form fields. When users visit pages containing the compromised fields, their browsers execute the malicious scripts. This affects all organizations running vulnerable Adobe Connect instances.

💻 Affected Systems

Products:
  • Adobe Connect
Versions: 12.8 and earlier
Operating Systems: All platforms running Adobe Connect
Default Config Vulnerable: ⚠️ Yes
Notes: All deployments of affected versions are vulnerable regardless of configuration.

📦 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 user systems.

🟠

Likely Case

Session hijacking, credential theft, or defacement of Adobe Connect pages through injected content.

🟢

If Mitigated

Limited impact if proper input validation and output encoding are implemented, though the vulnerability still exists.

🌐 Internet-Facing: HIGH
🏢 Internal Only: MEDIUM

🎯 Exploit Status

Public PoC: ✅ No
Weaponized: UNKNOWN
Unauthenticated Exploit: ✅ No
Complexity: LOW

Exploitation requires the attacker to have access to inject content into vulnerable form fields, typically requiring some level of access to the application.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: Adobe Connect 12.9 or later

Vendor Advisory: https://helpx.adobe.com/security/products/connect/apsb25-36.html

Restart Required: Yes

Instructions:

1. Download Adobe Connect 12.9 or later from Adobe's official website. 2. Backup current configuration and data. 3. Install the update following Adobe's installation guide. 4. Restart the Adobe Connect service. 5. Verify the update was successful.

🔧 Temporary Workarounds

Input Validation and Sanitization

all

Implement server-side input validation and output encoding for all user-controllable inputs

Content Security Policy

all

Implement a strict Content Security Policy to restrict script execution

🧯 If You Can't Patch

  • Implement Web Application Firewall (WAF) rules to block XSS payloads
  • Restrict access to Adobe Connect to trusted users only and monitor for suspicious activity

🔍 How to Verify

Check if Vulnerable:

Check Adobe Connect version in administration panel or via version file in installation directory

Check Version:

Check Adobe Connect admin panel or view version.txt in installation directory

Verify Fix Applied:

Verify version is 12.9 or later and test form fields for XSS vulnerabilities

📡 Detection & Monitoring

Log Indicators:

  • Unusual POST requests to form endpoints
  • Requests containing script tags or JavaScript payloads
  • Multiple failed injection attempts

Network Indicators:

  • Unusual traffic patterns to form submission endpoints
  • Requests with encoded script payloads

SIEM Query:

source="adobe_connect" AND (http_method="POST" AND (uri_path="*form*" OR uri_path="*submit*")) AND (content="<script>" OR content="javascript:" OR content="onerror=" OR content="onload=")

🔗 References

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