Yes an asterix wildcard character can be used in the pf_authcmds option as long as you put quotes (" ") around the entry and use the full path name to the command.
For Example the following could be used to run the chmod and chown commands:
This will allow you to run commands such as:
pmrun /bin/chown root:root /etc/passwd
pmrun /bin/chmod 644 /etc/passwd
Note that glob matches are only done for commands if full pathnames are used.