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Vulnerability record · CVE-2026-88003 · published 25 September 2026

CVE-2026-88003: Incorrect authorization vulnerability

InvoicePlane is a self-hosted open source application for managing invoices, clients, and payments. Prior to 1.7.2, InvoicePlane fails to revoke administrative privileges after a role downgrade because Admin_Controller trusts the user_type snapshot stored in an existing session instead of revalidating ip_users.user_type. When one administrator downgrades another account, the target's active session continues to authorize administrative requests. The downgraded user can use Users::form() to set user_type back to 1, restoring the database role and making the privilege escalation persistent. This vulnerability is fixed in 1.7.2.

7.5 CVSS 4.0 High EPSS 0.30% · top 79.9% CWE-863 · Incorrect authorization Received
7.5CVSS 4.0 base score
0.30%EPSS exploitation probability, 30 days
NoNot in CISA KEV
0Affected product versions listed by NVD
4References
25 Sep 2026Last modified by NVD

Description

InvoicePlane is a self-hosted open source application for managing invoices, clients, and payments. Prior to 1.7.2, InvoicePlane fails to revoke administrative privileges after a role downgrade because Admin_Controller trusts the user_type snapshot stored in an existing session instead of revalidating ip_users.user_type. When one administrator downgrades another account, the target's active session continues to authorize administrative requests. The downgraded user can use Users::form() to set user_type back to 1, restoring the database role and making the privilege escalation persistent. This vulnerability is fixed in 1.7.2.

CVSS:4.0/AV:N/AC:L/AT:P/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:

References

LinkTags
https://github.com/InvoicePlane/InvoicePlane/commit/904847f4e87b66fd6743cf9cc6f88b66c7fc3b81
https://github.com/InvoicePlane/InvoicePlane/commit/daa49ce3a50e0c93e01459b69c0d61bfc23d23eb
https://github.com/InvoicePlane/InvoicePlane/releases/tag/v1.7.2
https://github.com/InvoicePlane/InvoicePlane/security/advisories/GHSA-25xj-pj36-wpp8

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Source: NIST National Vulnerability Database (record CVE-2026-88003), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.