MyBB Limited ACP to Full Admin Privilege Escalation via ACP Permission Bypass
Detects unauthorized privilege escalation attempts within the MyBB Admin Control Panel (ACP). The rule identifies HTTP POST requests, likely generated by a limited-privilege account, that attempt to create a new user with Administrator permissions (gid=4) or modify an existing user's group assignment to the Administrator group, bypassing standard ACP permission controls.
Microsoft Sentinel (KQL)
