Is CVE-2026-121543 being exploited?

No public exploit is currently tracked.

How severe is CVE-2026-121543?

CVE-2026-121543 has a CVSS v3 severity of HIGH (8.8).

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CVE-2026-121543

Description

smart-sso through 2.0.1 contains an incorrect authorization vulnerability in PermissionFilter that allows any authenticated user to call admin console APIs because unlisted paths are permitted by default. Attackers can call /admin/user-role/save to assign themselves the administrator role, reset passwords, and manage users, roles, and applications across integrated systems.