The Member Hero WordPress plugin through 1.0.9 lacks authorization checks, and does not validate the a request parameter in an AJAX action, allowing unauthenticated users to call arbitrary PHP functions with no arguments.
Severity
CVSS 3.1
9.8 critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS
9.4% chance of exploitation in the next 30 days; higher than 95% of CVEs (scores of 2026-10-31)