Insufficient ownership check in clientarea.php allows an authenticated client area user to submit requests using another user’s addonId without any ownership validation leading to unauthorized access to the victim's account.
Exploitability
AV:NAC:LPR:NUI:NScope
S:UImpact
C:HI:HA:N9.1/CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:NOther