Realtyna Organic IDX plugin + WPL Real Estate < 5.3.0 - Unauthenticated Arbitrary File Upload to Remote Code Execution

The Realtyna Organic IDX plugin + WPL Real Estate WordPress plugin before 5.3.0 does not validate the type of uploaded files, and its file upload functionality is gated only by an API that is enabled by default and authenticated with hardcoded credentials shipped identically across all installations. This makes it possible for unauthenticated attackers to upload arbitrary PHP files and achieve remote code execution.