CVE-2019-19589

The Lever PDF Embedder plugin 4.4 for WordPress does not block the distribution of polyglot PDF documents that are valid JAR archives. Note: It has been argued that "The vulnerability reported in PDF Embedder Plugin is not valid as the plugin itself doesn't control or manage the file upload process. It only serves the uploaded PDF files and the responsibility of uploading PDF file remains with the Site owner of Wordpress installation, the upload of PDF file is managed by Wordpress core and not by PDF Embedder Plugin. Control & block of polyglot file is required to be taken care at the time of upload, not on showing the file. Moreover, the reference mentions retrieving the files from the browser cache and manually renaming it to jar for executing the file. That refers to a two step non-connected steps which has nothing to do with PDF Embedder.

The Lever PDF Embedder plugin 4.4 for WordPress does not block the distribution of polyglot PDF documents that are valid JAR archives. Note: It has been argued that "The vulnerability reported in PDF Embedder Plugin is not valid as the plugin itself doesn't control or manage the file upload process. It only serves the uploaded PDF files and the responsibility of uploading PDF file remains with the Site owner of Wordpress installation, the upload of PDF file is managed by Wordpress core and not by PDF Embedder Plugin. Control & block of polyglot file is required to be taken care at the time of upload, not on showing the file. Moreover, the reference mentions retrieving the files from the browser cache and manually renaming it to jar for executing the file. That refers to a two step non-connected steps which has nothing to do with PDF Embedder.

** DISPUTADA ** El plugin Lever PDF Embedder 4.4 para WordPress no bloquea la distribución de documentos PDF poliglotas que son archivos JAR válidos. Nota: Se ha argumentado que "La vulnerabilidad reportada en el PDF Embedder Plugin no es válida ya que el plugin por sí mismo no controla o gestiona el proceso de carga de archivos. Sólo sirve a los archivos PDF cargados y la responsabilidad de la carga del archivo PDF sigue siendo del propietario del sitio de la instalación de Wordpress, la carga del archivo PDF es administrada por el núcleo de Wordpress y no por el PDF Embedder Plugin. El control y el bloqueo del archivo políglota se debe realizar en el momento de la carga, no al mostrar el archivo. Además, la referencia menciona la recuperación de los archivos de la caché del navegador y el cambio de nombre manual a jar para ejecutar el archivo. Esto se refiere a un paso de dos pasos no conectados que no tiene nada que ver con PDF Embedder"