CVE-2026-85291: InvoicePlane Users::change_password object-level authorization bypass

CVE-2026-85291 · Severity: medium · CVSS 6.5 · Published 2026-09-25

InvoicePlane is a self-hosted invoicing application that manages billing, clients, and payments. An authenticated secondary administrator can reset the primary administrator's password without knowing the current password and take over their account, gaining full access to all financial data and system settings.

Technologies: InvoicePlane. Vendors: InvoicePlane.

Quick answers

Is CVE-2026-85291 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2026-85291 being exploited in the wild.
How severe is CVE-2026-85291?
Medium severity, with a CVSS score of 6.5, published 25 September 2026.
Which products and versions are affected?
InvoicePlane before 1.7.2.
Is there a fix for CVE-2026-85291?
A patch was published on 2026-08-28. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
How is CVE-2026-85291 attacked?
It is attacked over the network, in a web application.
Am I affected by CVE-2026-85291?
Check whether you run InvoicePlane at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

Technical details

The Users::change_password() method in the Admin_Controller accepts a user_id parameter from the URL but only verifies the requester is an administrator (user_type == 1), failing to enforce object-level authorization. An authenticated admin can POST to users/change_password/{id} targeting any other admin account. This improper access control (CWE-639) was fixed in version 1.7.2 by restricting the endpoint to the requester's own account only.

Affected products

  • InvoicePlane InvoicePlane before 1.7.2

Timeline

  • 2026-09-25: disclosed
  • 2026-08-28: patched

References

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