In Joomla Component GMapFP Version J3.5 and J3.5free, an attacker can access the upload function without authenticating to the application and can also upload files which due to issues of unrestricted file uploads which can be bypassed by changing the content-type and name file too double extensions.
Source: https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-23972
Reference (s):
- http://packetstormsecurity.com/files/159072/Joomla-GMapFP-J3.5-J3.5F-Arbitrary-File-Upload.html
- https://raw.githubusercontent.com/me4yoursecurity/Reports/master/README.md