CVE-2018-13356: TerraMaster Operating System

High severity, CVSS 8.8. EPSS: 2% chance of exploitation in the next 30 days.

Incorrect access control on ajaxdata.php in TerraMaster TOS version 3.1.03 allows attackers to elevate user permissions.

Affected products

• TerraMaster TerraMaster Operating System: version 3.1.03 only

Published 2018-11-27. Last modified 2026-06-17.