InvoicePlane up to 1.7.1 Users::change_password user_id improper authorization

Summaryinfo

A vulnerability classified as problematic was found in InvoicePlane up to 1.7.1. This issue affects the function Users::change_password. Executing a manipulation of the argument user_id can lead to improper authorization. This vulnerability is handled as CVE-2026-85291. The attack can be executed remotely. There is not any exploit available. Upgrading the affected component is advised.

Detailsinfo

A vulnerability was found in InvoicePlane up to 1.7.1. It has been declared as problematic. This vulnerability affects the function Users::change_password. The manipulation of the argument user_id with an unknown input leads to a improper authorization vulnerability. The CWE definition for the vulnerability is CWE-285. The product does not perform or incorrectly performs an authorization check when an actor attempts to access a resource or perform an action. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

InvoicePlane is a self-hosted open source application for managing invoices, clients, and payments. Prior to 1.7.2, InvoicePlane's Users::change_password() method accepts a user_id from the URL and updates that account's password without an object-level authorization check. An authenticated secondary administrator can target the primary administrator account and replace its password without knowing the current password. The attacker can then take over the primary account and access its data and privileges. This issue is fixed in version 1.7.2.

The advisory is available at github.com. This vulnerability was named CVE-2026-85291 since 09/03/2026. The exploitation appears to be easy. The attack can be initiated remotely. The exploitation needs additional levels of successful authentication. Technical details are known, but there is no available exploit. This vulnerability is assigned to T1548.002 by the MITRE ATT&CK project.

Upgrading to version 1.7.2 eliminates this vulnerability.

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Productinfo

Name

• InvoicePlane

Version

• 1.7.0
• 1.7.1

Website

• Product: https://github.com/InvoicePlane/InvoicePlane/

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