CVE-2025-62782
📋 TL;DR
InventoryGui library versions 1.6.3-SNAPSHOT and earlier contain a vulnerability that allows item duplication in Minecraft servers when the experimental Bundle item feature is enabled. This affects Bukkit/Spigot plugin developers using InventoryGui with GuiStorageElement functionality. Server administrators running vulnerable plugin versions are at risk of in-game economy disruption.
💻 Affected Systems
- InventoryGui library for Bukkit/Spigot plugins
📦 What is this software?
Inventorygui by Phoenix616
⚠️ Risk & Real-World Impact
Worst Case
Massive item duplication leading to server economy collapse, inflation of valuable items, and potential server instability from excessive item entities.
Likely Case
Limited item duplication by players exploiting the vulnerability, causing minor to moderate economic imbalance on affected servers.
If Mitigated
No impact if Bundle feature is disabled or patched version is used; minimal disruption with proper monitoring.
🎯 Exploit Status
Exploitation requires player access to vulnerable GUI elements and Bundle feature enabled; no public exploit code available.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 1.6.4-SNAPSHOT
Vendor Advisory: https://github.com/Phoenix616/InventoryGui/security/advisories/GHSA-rgvh-4m82-fvjq
Restart Required: No
Instructions:
1. Update InventoryGui dependency to version 1.6.4-SNAPSHOT or later. 2. Rebuild and redeploy affected plugins. 3. Verify Bundle feature handling in GUI elements.
🔧 Temporary Workarounds
Disable Bundle Experimental Feature
allDisable the experimental Bundle item feature in server configuration to prevent exploitation.
Set 'enable-bundle-experimental' to false in server.properties or relevant config
🧯 If You Can't Patch
- Disable experimental Bundle feature in server configuration
- Restrict player access to GUIs using GuiStorageElement or monitor for suspicious item transactions
🔍 How to Verify
Check if Vulnerable:
Check plugin dependencies for InventoryGui version ≤1.6.3-SNAPSHOT and verify Bundle experimental feature is enabled.Check Version:
Check plugin.yml or build.gradle for 'InventoryGui' dependency versionVerify Fix Applied:
Confirm InventoryGui version is ≥1.6.4-SNAPSHOT and test GUI interactions with Bundle items.📡 Detection & Monitoring
Log Indicators:
- Unusual item duplication in transaction logs
- Multiple Bundle-related GUI interactions in short time
Network Indicators:
- Abnormal packet patterns for inventory updates
SIEM Query:
Search for 'GuiStorageElement' and 'Bundle' in server logs with high frequency