Exponent CMS 2.3.9 suffers from a remote code execution vulnerability in /install/index.php. An attacker can upload an evil 'exploit.tar.gz…

Exponent CMS 2.3.9 suffers from a remote code execution vulnerability in /install/index.php. An attacker can upload an evil 'exploit.tar.gz' file to the website, then extract it by visiting '/install/index.php?install_sample=../../files/exploit', which leads to arbitrary code execution.