CVE-2025-34434
📋 TL;DR
AVideo versions before 20.1 with the ImageGallery plugin enabled are vulnerable to unauthenticated file upload and deletion. Attackers can upload malicious files or delete images from any image-based video without authentication. This affects all AVideo installations using the vulnerable plugin configuration.
💻 Affected Systems
- AVideo
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Attackers upload webshells or malware to gain persistent access, compromise the server, and potentially pivot to internal networks.
Likely Case
Attackers deface websites by replacing/deleting images, upload malicious files for phishing campaigns, or disrupt video content.
If Mitigated
Limited to temporary service disruption if proper file validation and network segmentation exist.
🎯 Exploit Status
Exploitation requires simple HTTP requests to vulnerable endpoints. Public technical details available in references.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 20.1
Vendor Advisory: https://github.com/WWBN/AVideo/commit/4a53ab2056
Restart Required: No
Instructions:
1. Update AVideo to version 20.1 or later. 2. Verify ImageGallery plugin is updated. 3. No service restart required for web application.
🔧 Temporary Workarounds
Disable ImageGallery Plugin
allTemporarily disable the vulnerable plugin until patching is complete.
Navigate to AVideo admin panel > Plugins > Disable ImageGallery plugin
Web Server File Restriction
linuxConfigure web server to block access to ImageGallery plugin endpoints.
# Apache: Add to .htaccess
RewriteRule ^plugin/ImageGallery/ - [F]
# Nginx: Add to server block
location ~ ^/plugin/ImageGallery/ { deny all; }
🧯 If You Can't Patch
- Implement strict network ACLs to limit access to AVideo administration interfaces
- Deploy WAF rules to block unauthenticated requests to /plugin/ImageGallery/ endpoints
🔍 How to Verify
Check if Vulnerable:
Check if AVideo version is below 20.1 and ImageGallery plugin is enabled in admin panel.Check Version:
Check AVideo configuration file or admin panel dashboard for version information.Verify Fix Applied:
Confirm AVideo version is 20.1+ and test that unauthenticated requests to /plugin/ImageGallery/ endpoints return authentication errors.📡 Detection & Monitoring
Log Indicators:
- Unauthenticated POST requests to /plugin/ImageGallery/upload.php
- Unauthenticated DELETE requests to /plugin/ImageGallery/ endpoints
- Unexpected file uploads to gallery directories
Network Indicators:
- Unusual traffic patterns to ImageGallery endpoints from unauthenticated sources
- File uploads to gallery paths without preceding authentication requests
SIEM Query:
source="web_logs" AND (uri_path="/plugin/ImageGallery/" AND (http_method="POST" OR http_method="DELETE") AND user_agent!="*bot*")