{"id":"CVE-2026-100392","summary":"InvoicePlane: Primary Administrator Privilege Downgrade via `Users::form()` (Missing Object-Level Authorization)","details":"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.","aliases":["GHSA-4fxw-x7wr-x6qc"],"modified":"2026-09-30T11:30:49.865360347Z","published":"2026-09-28T20:16:19.121Z","database_specific":{"cna_assigner":"GitHub_M","cwe_ids":["CWE-863"],"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/100xxx/CVE-2026-100392.json"},"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/100xxx/CVE-2026-100392.json"},{"type":"ADVISORY","url":"https://github.com/InvoicePlane/InvoicePlane/security/advisories/GHSA-4fxw-x7wr-x6qc"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-100392"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/invoiceplane/invoiceplane","events":[{"introduced":"aaeea1e4825785c6138fa84be49ac373bac4f0af"},{"last_affected":"aaeea1e4825785c6138fa84be49ac373bac4f0af"}],"database_specific":{"extracted_events":[{"introduced":"= 1.7.2"},{"last_affected":"= 1.7.2"}],"source":"AFFECTED_FIELD"}}],"versions":["= 1.7.2","v1.7.2"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-100392.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V4","score":"CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:N/VI:H/VA:L/SC:N/SI:N/SA:N"}]}