Guardian language-system passes the id GET parameter directly into a PHP exec() call in translate.php (line 14) without sanitization: exec("php jobs/translate.php ".$login_session." ".$_GET['id']." ..."). No authentication is required. An unauthenticated remote attacker can append shell metacharacters to execute arbitrary OS commands on the server.
Exploitability
AV:NAC:LAT:NPR:NUI:NVulnerable System
VC:HVI:HVA:HSubsequent System
SC:NSI:NSA:N9.3/CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:NInjection