# CVE-2025-62782: InventoryGUI vulnerable to item duplication via Bundle items when using GuiStorageElement

> Attackers can duplicate items in Bukkit plugins using InventoryGui when the experimental Bundle feature is enabled, requiring an upgrade to fix.

- **Severity:** Medium 5.9 (`CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:P/VC:N/VI:H/VA:L/SC:N/SI:L/SA:L`)
- **Exploited in the wild:** Not known
- **Login needed:** Any signed-in user
- **Attackable:** Over the internet
- **Victim action needed:** A user has to click or open something
- **Fix available:** Yes
- **Published:** 27 Oct 2025
- **Updated:** 28 Oct 2025
- **Also known as:** GHSA-rgvh-4m82-fvjq

## What is CVE-2025-62782?

CVE-2025-62782 is a medium-severity vulnerability in Phoenix616 InventoryGui, published on 27 Oct 2025. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.

### Official description

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

## Which versions are affected by CVE-2025-62782?

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 | 1.6.4-SNAPSHOT |
| `de.themoep:inventorygui` | Maven | All versions | 1.6.4-SNAPSHOT |

Products: Phoenix616 Inventorygui.

## How do I fix CVE-2025-62782?

Upgrade de.themoep:inventorygui to 1.6.4-SNAPSHOT or later.

## Is CVE-2025-62782 being exploited?

There is no known exploitation of CVE-2025-62782 in the wild and no public exploit code.

## Other vulnerabilities in Phoenix616 InventoryGui

- [CVE-2025-62784](https://insights.sbomify.com/CVE-2025-62784/): InventoryGui allows item duplication in GUIs which use GuiStorageElement (medium 5.3)
- [CVE-2025-62783](https://insights.sbomify.com/CVE-2025-62783/): InventoryGui affected by item duplication in GUIs which use GuiStorageElement (medium 5.0)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2025-62782 and fix it if it is affected.

What it is: CVE-2025-62782 is a medium-severity vulnerability in Phoenix616 InventoryGui, published on 27 Oct 2025. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.
Exploitation: There is no known exploitation of CVE-2025-62782 in the wild and no public exploit code.

Affected packages and fixed versions:
- de.themoep:inventorygui (Maven): affected all versions; fixed in 1.6.4-SNAPSHOT
- de.themoep:inventorygui (Maven): affected all versions; fixed in 1.6.4-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-2025-62782/ (Markdown: https://insights.sbomify.com/CVE-2025-62782/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2025-62782
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2025-62782
- OSV: https://osv.dev/vulnerability/CVE-2025-62782

---
From sbomify Insights: https://insights.sbomify.com/CVE-2025-62782/
Summaries are generated and may contain mistakes; the official description above is the record.