Update the WordPress JS Help Desk – Best Help Desk & Support Plugin plugin to the latest available version (at least 2.7.2).
FearZzZz discovered and reported this Arbitrary File Upload vulnerability in WordPress JS Help Desk – Best Help Desk & Support Plugin Plugin. This could allow a malicious actor to upload any type of file to your website. This can include backdoors which are then executed to gain further access to your website. This vulnerability has been fixed in version 2.7.2.