CVE-2025-62429
📋 TL;DR
This vulnerability allows remote code execution in ClipBucket v5 video sharing platform. Attackers can inject malicious PHP code through the 'type' parameter in update_launch.php, enabling them to execute arbitrary commands on the server. All ClipBucket v5 installations prior to version 5.5.2 #147 are affected.
💻 Affected Systems
- ClipBucket v5
📦 What is this software?
Clipbucket by Oxygenz
⚠️ Risk & Real-World Impact
Worst Case
Complete server compromise allowing attackers to install malware, steal data, pivot to other systems, or establish persistent backdoors.
Likely Case
Website defacement, data theft, cryptocurrency mining, or use as part of a botnet.
If Mitigated
Limited impact with proper network segmentation, web application firewalls, and minimal privileges.
🎯 Exploit Status
Exploitation requires access to admin area but is straightforward once access is obtained
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 5.5.2 #147
Vendor Advisory: https://github.com/MacWarrior/clipbucket-v5/security/advisories/GHSA-3x4g-x3gv-rjmq
Restart Required: No
Instructions:
1. Backup your current installation. 2. Download version 5.5.2 #147 from GitHub releases. 3. Replace the vulnerable file /upload/admin_area/actions/update_launch.php with the patched version. 4. Verify the fix by checking the file contains proper input validation.
🔧 Temporary Workarounds
Restrict access to admin area
allBlock external access to the vulnerable endpoint using web server configuration
# For Apache: add to .htaccess
<Files "update_launch.php">
Order deny,allow
Deny from all
Allow from 127.0.0.1
</Files>
# For Nginx: add to server block
location ~ /upload/admin_area/actions/update_launch\.php$ {
deny all;
allow 127.0.0.1;
}
🧯 If You Can't Patch
- Implement strict network segmentation to isolate the ClipBucket server
- Deploy a web application firewall (WAF) with RCE protection rules
🔍 How to Verify
Check if Vulnerable:
Check if /upload/admin_area/actions/update_launch.php exists and contains unsanitized user input in PHP tagsCheck Version:
Check the version in /upload/includes/version.php or admin panelVerify Fix Applied:
Verify the patched file validates and sanitizes the 'type' parameter before execution📡 Detection & Monitoring
Log Indicators:
- Unusual POST requests to /upload/admin_area/actions/update_launch.php
- PHP execution errors with suspicious code in parameters
- Unexpected system command execution
Network Indicators:
- HTTP requests with PHP code in POST parameters
- Outbound connections from web server to suspicious IPs
SIEM Query:
source="web_server" AND (uri="/upload/admin_area/actions/update_launch.php" OR (POST_data CONTAINS "<?php" OR POST_data CONTAINS "eval("))🔗 References
- https://github.com/MacWarrior/clipbucket-v5/commit/e81bac602c871bb1ad971884003a3a496a2ab50b
- https://github.com/MacWarrior/clipbucket-v5/releases/tag/5.5.2-%23147
- https://github.com/MacWarrior/clipbucket-v5/security/advisories/GHSA-3x4g-x3gv-rjmq
- https://github.com/MacWarrior/clipbucket-v5/security/advisories/GHSA-3x4g-x3gv-rjmq
