CVE-2026-55382Network attack vector

Cross-company note access via missing tenant authorization

Published Oct 14, 2026 · Updated Oct 14, 2026

IDOR in InvoiceShelf before 2.4.0 allows remote authenticated users to read, modify, or delete notes via crafted note IDs. NotesController::show, update, and destroy omit the bound Note from authorization, so NotePolicy never checks company_id; the Note model has no global company scope. Ordinary staff note abilities suffice to access another company's sequential identifiers, but the impact is limited to reusable note templates rather than invoice, customer, or payment records.

CVSS severity7.6
High
EPSS probability0.38%
Next 30 days · Oct 18, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

IDOR in InvoiceShelf before 2.4.0 allows remote authenticated users to read, modify, or delete notes via crafted note IDs. NotesController::show, update, and destroy omit the bound Note from authorization, so NotePolicy never checks company_id; the Note model has no global company scope. Ordinary staff note abilities suffice to access another company's sequential identifiers, but the impact is limited to reusable note templates rather than invoice, customer, or payment records.

The record

CVE
CVE-2026-55382
Published
Oct 14, 2026
Updated
Oct 14, 2026
Vendor
InvoiceShelf
Product
InvoiceShelf
Classifications
CWE-639, CWE-862, T1565.001
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Oct 14, 2026CVE publishedPublication date reported by the CVE source.
  2. Oct 14, 2026Record 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=< 2.4.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

InvoiceShelf · InvoiceShelfversion=< 2.4.0

Published CVSS scores

7.6InvoiceShelfCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:L

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.

Activity data is delayed. The latest report is Sep 28, 2026.

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

No observations available

Sep 22, 2026Sep 28, 2026
Latest reporting daySep 28, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-639Authorization Bypass Through User-Controlled Key
CWE-862Missing Authorization
T1565.001Stored Data Manipulation

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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