CVE-2026-11366

The MonsterInsights WordPress plugin before 11.1.0 does not correctly validate the signature on one of its unauthenticated AJAX actions: when the MonsterInsights WordPress plugin before 11.1.0 is not connected to Google Analytics the HMAC signing key is empty, which lets unauthenticated attackers...

CVE-2026-11366

The CVE concerns the WordPress plugin MonsterInsights prior to version 11.1.0. It fails to correctly validate the signature on an unauthenticated AJAX action when not connected to Google Analytics, leaving an empty HMAC signing key. This enables unauthenticated attackers to forge a valid signatur...