CVE-2026-55561

InvoicePlane is a self-hosted open source application for managing invoices, clients, and payments. Prior to 1.7.2-beta-1, guest users can approve or reject quotes belonging to any client, not just their assigned clients. The `approve()` and `reject()` methods in the Guest Quotes controller, `application/modules/guest/controllers/Quotes.php`, call `approve_quote_by_id($quote_id)` and `reject_quote_by_id($quote_id)` directly without the `where_in('ip_quotes.client_id', $this->user_clients)` scoping that sibling methods use. A guest user assigned to one client can change another client's quote status by supplying sequential integer `quote_id` values, and `email_quote_status()` also sends notification emails. Additionally, `generate_pdf()` calls `mark_viewed($quote_id)` before checking the client scope, allowing a guest user to mark another client's quote as viewed. These issues are fixed in version 1.7.2-beta-1 and the subsequent stable version 1.7.2.
CVSS

No CVSS.

Configurations

No configuration.

History

28 Oct 2026, 23:17

Type Values Removed Values Added
New CVE

Information

Published : 2026-10-28 23:17

Updated : 2026-10-28 23:17


NVD link : CVE-2026-55561

Mitre link : CVE-2026-55561

CVE.ORG link : CVE-2026-55561


JSON object : View

Products Affected

No product.

CWE
CWE-639

Authorization Bypass Through User-Controlled Key