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Improper access control in InvoiceShelf member creation

Priority MEDIUM 56CWE-266Published · Updated

Key facts

Attack vector
Network
Privileges required
High
User interaction
None
Attack complexity
Low
Attack requirements
None
Impact type
Privilege escalation, Security bypass
Confidentiality · integrity · availability
Low · Low · Low
Fix status
Fixed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-266 and CWE-284.

Summary

InvoiceShelf up to 2.4.3 and 3.0.0-alpha.3 has an improper access control flaw (CWE-284) in the MemberService::create function. Manipulating the companies[].id and companies[].role arguments results in improper access controls, and a remote attacker with high privileges can trigger it. A public exploit has been released.

Written with Claude Haiku 5.5 from the sources below · 2026-11-06

Description from the CNA

A security flaw has been discovered in InvoiceShelf up to 2.4.3/3.0.0-alpha.3. Affected by this issue is the function MemberService::create of the file app/Domains/Accounts/Application/MemberService.php. Performing a manipulation of the argument companies[].id/companies[].role results in improper access controls. The attack is possible to be carried out remotely. The exploit has been released to the public and may be used for attacks. Upgrading to version 2.4.4 and 3.0.0-alpha.4 can resolve this issue. The patch is named c798b513c3ab6e672a1678774720fbb282f4d0c6. It is recommended to upgrade the affected component.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00272 19th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by the CNA
Fix Fixed InvoiceShelf: 2.4.4, 3.0.0-alpha.4

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Poc
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
—InvoiceShelf2.4.0; 2.4.1; 2.4.2; 2.4.3; 3.0.0-alpha.0; 3.0.0-alpha.1; 3.0.0-alpha.2; 3.0.0-alpha.32.4.4, 3.0.0-alpha.4Patch availableCNA
  • InvoiceShelf Vendor— Affected 2.4.0; 2.4.1; 2.4.2; 2.4.3; 3.0.0-alpha.0; 3.0.0-alpha.1; 3.0.0-alpha.2; 3.0.0-alpha.3 Fixed in 2.4.4, 3.0.0-alpha.4 Patch available CNA

CPE names CNA · 1

CPEVersionsRoleVendor
cpe:2.3:a:invoiceshelf:invoiceshelf:*:*:*:*:*:*:*:*——InvoiceShelf
  • cpe:2.3:a:invoiceshelf:invoiceshelf:*:*:*:*:*:*:*:* Versions — — ·InvoiceShelf

Remediation

Upgrade InvoiceShelf to version 2.4.4 or 3.0.0-alpha.4. The fix is available in patch c798b513c3ab6e672a1678774720fbb282f4d0c6.

Written with Claude Haiku 5.5 from the sources below · 2026-11-06

  • Fix · CNA InvoiceShelf Fixed in 2.4.4, 3.0.0-alpha.4

Timeline

  1. 2026-11-05 Threatist record created from CVE-2026-122158
  2. 2026-11-05 Alias added: GHSA-m3f2-9g2h-fgj9
  3. 2026-11-05 CISA SSVC decision points changed
  4. 2026-11-05 Priority changed: LOW → MEDIUM

References

Sources