Joomla! Component GMapFP 3.5 is vulnerable to arbitrary file upload vulnerabilities. An attacker can access the upload function of the application without authentication and can upload files because of unrestricted file upload which can be bypassed by changing Content-Type & name file too double ext.
View the template here CVE-2020-23972.yaml
References:
http://packetstormsecurity.com/files/159072/Joomla-GMapFP-J3.5-J3.5F-Arbitrary-File-Upload.html