Access Control Flaw in Invoice Management Software by InvoicePlane
CVE-2026-55561

5.3MEDIUM

Key Information:

Vendor

Invoiceplane

Status
Invoiceplane
Vendor
CVE Published:
28 October 2026

What is CVE-2026-55561?

InvoicePlane, a self-hosted open-source application for invoice management, has a vulnerability that allows guest users to approve or reject quotes belonging to clients other than their own. Specifically, the Guest Quotes controller does not adequately scope access to quotes, enabling potential manipulation of quote statuses through sequential integer IDs. This flaw can also allow unauthorized users to mark other clients' quotes as viewed. The vulnerabilities have been addressed in version 1.7.2-beta-1 and later stable releases.

Affected Version(s)

InvoicePlane < 1.7.2-beta-1

References

https://github.com/InvoicePlane/InvoicePlane/security/adv...
x_refsource_CONFIRM
https://github.com/InvoicePlane/InvoicePlane/pull/1413
x_refsource_MISC
https://github.com/InvoicePlane/InvoicePlane/pull/1471
x_refsource_MISC

CVSS V4

Score:
5.3
Severity:
MEDIUM
Confidentiality:
None
Integrity:
Low
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.