SeoToaster Ecommerce 3.0.0 Local File Inclusion via backend_theme

SeoToaster Ecommerce 3.0.0 contains a local file inclusion vulnerability that allows authenticated attackers to read arbitrary files by manipulating path parameters in backend theme endpoints. Attackers can send POST requests to /backend/backend_theme/editcss/ or /backend/backend_theme/editjs/ with directory traversal sequences in the getcss or getjs parameters to retrieve file contents.