Brave CMS is an open-source CMS. Prior to 2.0.6, this vulnerability is a missing authorization check found in the update role endpoint at routes/web.php. The POST route for /rights/update-role/{id} lacks the checkUserPermissions:assign-user-roles middleware. This allows any authenticated user to change account roles and promote themselves to Super Admin. This vulnerability is fixed in 2.0.6.
Exploitability
AV:NAC:LPR:LUI:NScope
S:UImpact
C:HI:HA:H8.8/CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HAccess Control