# CVE-2025-62783: InventoryGui affected by item duplication in GUIs which use GuiStorageElement

> Attackers can duplicate items in Minecraft server plugins using InventoryGui when experimental Bundle features are enabled.

- **Severity:** Medium 5.0 (`CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:L/A:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Any signed-in user
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** Yes
- **Published:** 27 Oct 2025
- **Updated:** 28 Oct 2025
- **Also known as:** GHSA-598q-jw82-5w66

## What is CVE-2025-62783?

CVE-2025-62783 is a medium-severity vulnerability in Phoenix616 InventoryGui, published on 27 Oct 2025. Any signed-in user can exploit it over the network, with no action from the victim.

### Official description

InventoryGui is a library for creating chest GUIs for Bukkit/Spigot plugins. Versions 1.6.1-SNAPSHOT and earlier contain a vulnerability where any plugin using the `GuiStorageElement  can allow item duplication when the experimental Bundle item feature is enabled on the server. The vulnerability is resolved in version 1.6.2-SNAPSHOT.

Weakness: CWE-837 (Improper Enforcement of a Single, Unique Action)

## Which versions are affected by CVE-2025-62783?

2 open source packages ship an affected version, including de.themoep:inventorygui. It affects 1 product.


| Package | Ecosystem | Affected | Fixed in |
| --- | --- | --- | --- |
| `de.themoep:inventorygui` | Maven | All versions | 1.6.2-SNAPSHOT |
| `de.themoep:inventorygui` | Maven | All versions | 1.6.2-SNAPSHOT |

Products: Phoenix616 Inventorygui.

## How do I fix CVE-2025-62783?

Upgrade de.themoep:inventorygui to 1.6.2-SNAPSHOT or later.

## Is CVE-2025-62783 being exploited?

There is no known exploitation of CVE-2025-62783 in the wild and no public exploit code.

## Other vulnerabilities in Phoenix616 InventoryGui

- [CVE-2025-62782](https://insights.sbomify.com/CVE-2025-62782/): InventoryGUI vulnerable to item duplication via Bundle items when using GuiStorageElement (medium 5.9)
- [CVE-2025-62784](https://insights.sbomify.com/CVE-2025-62784/): InventoryGui allows item duplication in GUIs which use GuiStorageElement (medium 5.3)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2025-62783 and fix it if it is affected.

What it is: CVE-2025-62783 is a medium-severity vulnerability in Phoenix616 InventoryGui, published on 27 Oct 2025. Any signed-in user can exploit it over the network, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2025-62783 in the wild and no public exploit code.

Affected packages and fixed versions:
- de.themoep:inventorygui (Maven): affected all versions; fixed in 1.6.2-SNAPSHOT
- de.themoep:inventorygui (Maven): affected all versions; fixed in 1.6.2-SNAPSHOT

Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.

Reference: https://insights.sbomify.com/CVE-2025-62783/ (Markdown: https://insights.sbomify.com/CVE-2025-62783/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2025-62783
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2025-62783
- OSV: https://osv.dev/vulnerability/CVE-2025-62783

---
From sbomify Insights: https://insights.sbomify.com/CVE-2025-62783/
Summaries are generated and may contain mistakes; the official description above is the record.