Description
WordPress Plugin Secure File Manager 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 Secure File Manager version 2.9.3 is vulnerable; prior versions may also be affected.
Remediation
Disable and remove the plugin until a fix is available
References
https://github.com/Hacker5preme/Exploits/tree/main/Wordpress/SFM-0day
https://wordpress.org/plugins/secure-file-manager/#description