ShapedPlugin Multiple Pro Plugins - Backdoor via Compromised Vendor Update Server

Multiple Shapedsmart-post-show-pro WordPress plugin before 4.0.2, Real Testimonials Pro WordPress plugin before 3.2.5, Product Slider for WooCommerce Pro WordPress plugin before 3.5.3 Pro smart-post-show-pro WordPress plugin before 4.0.2, Real Testimonials Pro WordPress plugin before 3.2.5, Product Slider for WooCommerce Pro WordPress plugin before 3.5.3 were distributed with malicious code through the vendor's compromised update server, allowing unauthenticated attackers to deploy a second-stage payload that exfiltrates credentials and other sensitive data and grants full control of affected sites.