Access Control Flaw in InvoiceShelf by InvoiceShelf
CVE-2026-122158

5.1MEDIUM

Key Information:

Vendor

InvoiceShelf

Status
Invoiceshelf
Vendor
CVE Published:
5 November 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-122158?

A critical access control vulnerability has been identified in InvoiceShelf affecting versions up to 2.4.3 and 3.0.0-alpha.3. The issue stems from inadequate validation in the MemberService::create function found within app/Domains/Accounts/Application/MemberService.php. This vulnerability allows unauthorized remote access by manipulating the companies[].id and companies[].role parameters. The threat has been made public, with a patch available in version 2.4.4 and 3.0.0-alpha.4, addressing the exploit. Users are strongly encouraged to update their systems to secure against potential attacks.

Affected Version(s)

InvoiceShelf 2.4.0

InvoiceShelf 2.4.1

InvoiceShelf 2.4.2

Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

CVE-2026-122158 - Proof of Concept

References

https://vuldb.com/vuln/431158
vdb-entrytechnical-description
https://vuldb.com/vuln/431158/cti
signaturepermissions-required
https://vuldb.com/cve/CVE-2026-122158
third-party-advisory

CVSS V4

Score:
5.1
Severity:
MEDIUM
Confidentiality:
Low
Integrity:
Low
Availability:
Low
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

fernando viana (VulDB User)
.