InventoryGui <=1.6.3 dup via GuiStorageElement with bundles (fixed v1.6.4): CVE-2025-62782 October 2025

InventoryGUI vulnerable to item duplication via Bundle items when using GuiStorageElement
InventoryGui is a library for creating chest GUIs for Bukkit/Spigot plugins. Versions 1.6.3-SNAPSHOT and earlier contain a vulnerability where GUIs using GuiStorageElement can allow item duplication when the experimental Bundle item feature is enabled on the server. The vulnerability is resolved in version 1.6.4-SNAPSHOT.

Weakness Type

Improper Enforcement of a Single, Unique Action

The software requires that an actor should only be able to perform an action once, or to have only one unique action, but the software does not enforce or improperly enforces this restriction. In various applications, a user is only expected to perform a certain action once, such as voting, requesting a refund, or making a purchase. When this restriction is not enforced, sometimes this can have security implications. For example, in a voting application, an attacker could attempt to "stuff the ballot box" by voting multiple times. If these votes are counted separately, then the attacker could directly affect who wins the vote. This could have significant business impact depending on the purpose of the software.

Products Associated with CVE-2025-62782

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Affected Versions

Vulnerable Packages

Exploit Probability

Package Manager	Vulnerable Package	Versions	Fixed In
maven	de.themoep:inventorygui	<= 1.6.3-SNAPSHOT	1.6.4-SNAPSHOT

EPSS

0.02%

Percentile

4.58%

EPSS (Exploit Prediction Scoring System) scores estimate the probability that a vulnerability will be exploited in the wild within the next 30 days. The percentile shows you how this score compares to all other vulnerabilities.