Description
WordPress Plugin N5 Upload Form is prone to a vulnerability that lets attackers upload arbitrary files because the application fails to properly verify user-supplied input. An attacker can exploit this vulnerability to upload arbitrary code and run it in the context of the webserver process. This may facilitate unauthorized access or privilege escalation; other attacks are also possible. WordPress Plugin N5 Upload Form version 1.0 is vulnerable.
Remediation
Disable and remove the plugin until a fix is available
References
https://www.youtube.com/watch?v=atrGpU7I8F8
https://github.com/jinhuang1102/CVE-ID-Reports/blob/master/N5_upload.md
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