The vulnerability exploitation was detected on September 1st, 2020. The attackers can remotely upload arbitrary files and execute arbitrary code.
Vulnerable component: File Manager
CVSSv3 score: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:H/RL:O/RC:C
CWE-ID: CWE-434 - Unrestricted Upload of File with Dangerous Type
The vulnerability allows a remote attacker to compromise vulnerable system.
The vulnerability exists due to insufficient validation of file during file upload in wp-file-manager in the "lib/php/connector.minimal.php" and "lib/files/hardfork.php" files. A remote attacker can upload a malicious file and execute it on the server.
Note: The vulnerability is being actively exploited in the wild.┬а