CVE-2026-21743

The CVE-2026-21743 issue affects Fortinet FortiAuthenticator releases 6.6.0–6.6.6, all 6.5 series, and all 6.4 and 6.3 versions. It is a missing authorization vulnerability where a read-only user could modify local users by uploading a file to an unprotected endpoint. The CVSS 3.1 base score is 7...