CVE-2025-62783Network attack vector

Item duplication via playerless storage update

Published Oct 27, 2025 · Updated Oct 27, 2025

Item duplication in Phoenix616 InventoryGui 1.6.1-SNAPSHOT and earlier allows remote authenticated users to duplicate stored items. During a double-click collect-to-cursor action, simulateCollectToCursor calls setStorageItem without the clicking player, triggering a null dereference after the cursor update and leaving storage state unsynchronized. Exploitation requires a plugin GUI that uses GuiStorageElement and a server with experimental Bundle items enabled; the consequence is unauthorized inventory growth.

CVSS severity5.0
Medium
EPSS probability0.24%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Item duplication in Phoenix616 InventoryGui 1.6.1-SNAPSHOT and earlier allows remote authenticated users to duplicate stored items. During a double-click collect-to-cursor action, simulateCollectToCursor calls setStorageItem without the clicking player, triggering a null dereference after the cursor update and leaving storage state unsynchronized. Exploitation requires a plugin GUI that uses GuiStorageElement and a server with experimental Bundle items enabled; the consequence is unauthorized inventory growth.

The record

CVE
CVE-2025-62783
Published
Oct 27, 2025
Updated
Oct 27, 2025
Vendor
Phoenix616
Product
InventoryGui
Classifications
CWE-837, CWE-754, T1565.001
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Oct 27, 2025CVE publishedPublication date reported by the CVE source.
  2. Oct 27, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=< 1.6.2-SNAPSHOT

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Phoenix616 · InventoryGuiversion=< 1.6.2-SNAPSHOT

Published CVSS scores

5.0GitHub, Inc.CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:L/A:N
4.3NIST NVDCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-837Improper Enforcement of a Single, Unique Action
CWE-754Improper Check for Unusual or Exceptional Conditions
T1565.001Stored Data Manipulation

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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