CVE-2023-2180 KIWIZ Invoices Certification & PDF System <= 2.1.3 - Unauthenticated Arbitrary File Download

The KIWIZ Invoices Certification & PDF System WordPress plugin through 2.1.3 does not validate the path of files to be downloaded, which could allow unauthenticated attacker to read/downlaod arbitrary files, as well as perform PHAR unserialization assuming they can upload a file on the server...