Multiple SQL injection vulnerabilities in Eskolar CMS 0.9.0.0 allow remote attackers to execute arbitrary SQL commands via the (1) gr_1_id, (2) gr_2_id, (3) gr_3_id, and (4) doc_id parameters in (a) index.php; the (5) uid and (6) pwd parameters in (b) php/esa.php; and possibly other vectors related to files in php/lib/ including (c) del.php, (d) download_backup.php, (e) navig.php, (f) restore.php, (g) set_12.php, (h) set_14.php, and (i) upd_doc.php.