Multiple SQL injection vulnerabilities in DRZES HMS 3.2 allow remote attackers to execute arbitrary SQL commands via the (1) plan_id parameter to (a) domains.php, (b) viewusage.php, (c) pop_accounts.php, (d) databases.php, (e) ftp_users.php, (f) crons.php, (g) pass_dirs.php, (h) zone_files.php, (i) htaccess.php, and (j) software.php; (2) the customerPlanID parameter to viewplan.php; (3) the ref_id parameter to referred_plans.php; (4) customerPlanID parameter to listcharges.php; and (5) the domain parameter to (k) pop_accounts.php, (d) databases.php, (e) ftp_users.php, (f) crons.php, (g) pass_dirs.php, (h) zone_files.php, (i) htaccess.php, and (j) software.php.  NOTE: the viewinvoice.php invoiceID vector is already covered by CVE-2005-4137.