CVE-2025-62784
📋 TL;DR
This vulnerability allows item duplication in Minecraft servers using the InventoryGui library when the experimental Bundle item feature is enabled. Any plugin using GuiStorageElement that permits item removal is affected, potentially disrupting server economies. The issue affects Bukkit/Spigot servers running vulnerable InventoryGui versions.
💻 Affected Systems
- InventoryGui library
- Bukkit/Spigot plugins using InventoryGui
📦 What is this software?
Inventorygui by Phoenix616
⚠️ Risk & Real-World Impact
Worst Case
Massive item duplication could crash server economy, cause inventory corruption, and lead to server instability or crashes.
Likely Case
Limited item duplication by players exploiting the bug, causing minor economic disruption and requiring admin cleanup.
If Mitigated
No impact if Bundle feature is disabled or proper version is installed.
🎯 Exploit Status
Requires player access to vulnerable GUI and Bundle feature enabled. No public exploit code known.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 1.6.5
Vendor Advisory: https://github.com/Phoenix616/InventoryGui/security/advisories/GHSA-7whh-79j3-7c55
Restart Required: Yes
Instructions:
1. Update InventoryGui to version 1.6.5 or later. 2. Restart server. 3. Verify all plugins using InventoryGui are compatible with new version.
🔧 Temporary Workarounds
Disable Bundle feature
allDisable experimental Bundle items in server configuration
Edit server.properties or bukkit.yml to disable bundle feature
Restrict GUI access
allLimit player access to vulnerable GUIs using permissions
Use permission plugins to restrict access to affected GUIs
🧯 If You Can't Patch
- Disable experimental Bundle item feature in server configuration
- Monitor server logs for unusual item duplication patterns
🔍 How to Verify
Check if Vulnerable:
Check if InventoryGui version is below 1.6.5 and Bundle feature is enabled.Check Version:
/plugins or check plugin.yml for InventoryGui versionVerify Fix Applied:
Confirm InventoryGui version is 1.6.5 or higher in plugin list.📡 Detection & Monitoring
Log Indicators:
- Unusual item duplication in logs
- Multiple item transactions in short time
Network Indicators:
- Unusual inventory packet patterns
SIEM Query:
Search for 'duplicate', 'item', 'bundle' in server logs with high frequency