Privilege Escalation in ThemeGrill Masteriyo - LMS

Successful exploitation can allow privilege escalation within the affected WordPress environment. Based on the provided CVSS vector (AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H), the issue is remotely exploitable over the network, requires only low privileges, and does not require user interaction. The stated impacts are high for confidentiality, integrity, and availability, indicating an attacker may be able to gain elevated access and then access sensitive data, modify site content or configuration, and disrupt normal operation.

Until a fixed version is deployed, restrict access to accounts with roles that can interact with Masteriyo - LMS administrative or privileged functionality, minimize the number of low-privileged accounts, and monitor for unexpected role or capability changes. Where operationally feasible, temporarily disable the plugin or limit its exposure on internet-accessible systems if the affected functionality is not required. Review WordPress user accounts and audit logs for signs of unauthorized privilege changes or suspicious administrative actions.

Upgrade ThemeGrill Masteriyo - LMS to a version newer than 2.2.0 once a vendor-fixed release is available. If a patched version has already been released by the vendor, apply that update immediately across all affected WordPress instances. Review plugin roles and capabilities after updating to ensure no unintended elevated permissions remain assigned.