CVE-2026-11976 MonsterInsights Pro 10.2.0/10.2.2 - Backdoored via AWS S3 bucket compromise

The official MonsterInsights Pro update distribution bucket monster-insights.s3.amazonaws.com was compromised. Both the current release 10.2.2 and the version MonsterInsights rolled back to 10.2.0 contain a malicious file, class-system-check.php. Three distinct variants were observed on 2026-06-1...