What’s Vulnerable › Vulnerabilities

CVE-2026-100392: InvoicePlane: Primary Administrator Privilege Downgrade via `Users::form()` (Missing Object-Level Authorization)

• Severity: high (CVSS 7.0 v4.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.3% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-09-28 · updated 2026-09-30
• Weakness: CWE-863

Description

InvoicePlane is a self-hosted open source application for managing invoices, clients, and payments. In version 1.7.2, Users::form() performs no object-level authorization check on user_id = 1. A Secondary Administrator (user_type = 1, user_id != 1) can rewrite the Primary Administrator's user_type to 2 (Guest / read-only), destroying the root account's privilege and locking the legitimate owner out of the instance. At time of publication, there are no publicly available patches.

Affected products

• InvoicePlane: = 1.7.2

References

• https://github.com/InvoicePlane/InvoicePlane/security/advisories/GHSA-4fxw-x7wr-x6qc
• https://github.com/InvoicePlane/InvoicePlane/security/advisories/GHSA-4fxw-x7wr-x6qc

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