GHSA-MQ5V-PXPM-8JW2 Froxlor has privilege escalation in SSH key synchronization via symlinked `authorized_keys` path

Summary Froxlor 2.3.6 contains a symlink-following flaw in the root-owned SSH key synchronization path used for customer FTP users. The provisioning code appends public keys to /.ssh/authorizedkeys under a customer-controlled home directory without verifying that the target path is not a symbolic...