Multiple SQL injection vulnerabilities in phpTRADER 4.9 SP5 and earlier allow remote attackers to execute arbitrary SQL commands via the (1) sectio parameter in (a) login.php, (b) write_newad.php, (c) newad.php, (d) printad.php, (e) askseller.php, (f) browse.php, (g) showmemberads.php, (h) note_ad.php, (i) abuse.php, (j) buynow.php, (k) confirm_newad.php, (2) an parameter in (l) printad.php, (m) note_ad.php, (3) who parameter in (n) showmemberads.php, and (4) adnr parameter in (o) buynow.php.