Multiple SQL injection vulnerabilities in TorrentTrader Classic 1.09 allow remote authenticated users to execute arbitrary SQL commands via (1) the origmsg parameter to account-inbox.php; the categ parameter to (2) delreq.php and (3) admin-delreq.php; (4) the choice parameter to index.php; (5) the id parameter to modrules.php in an edited (aka edit) action; the (6) user, (7) torrent, (8) forumid, and (9) forumpost parameters to report.php; (10) the delmp parameter to take-deletepm.php; (11) the delreport parameter to takedelreport.php; (12) the delreq parameter to takedelreq.php; (13) the clases parameter to takestaffmess.php; and (14) the warndisable parameter to takewarndisable.php; and allow remote attackers to execute arbitrary SQL commands via (15) the wherecatin parameter to browse.php, (16) the limit parameter to today.php, and (17) the where parameter to torrents-details.php.

TorrentTrader Classic 1.09 allows remote attackers to (1) obtain configuration information via a direct request to phpinfo.php, which calls the phpinfo function; and allows remote attackers to (2) obtain other potentially sensitive information via a direct request to check.php.

Multiple cross-site scripting (XSS) vulnerabilities in TorrentTrader Classic 1.09 allow remote authenticated users to inject arbitrary web script or HTML via (1) the Title field to requests.php, related to viewrequests.php; and (2) the Torrent Name field to torrents-upload.php, related to the logging of torrent uploads; and allow remote attackers to inject arbitrary web script or HTML via (3) the ttversion parameter to themes/default/footer.php, the (4) SITENAME and (5) CURUSER[username] parameters to themes/default/header.php, (6) the todayactive parameter to visitorstoday.php, (7) the activepeople parameter to visitorsnow.php, (8) the faq_categ[999][title] parameter to faq.php, and (9) the keepget parameter to torrents-details.php.

backup-database.php in TorrentTrader Classic 1.09 does not require administrative authentication, which allows remote attackers to create and download a backup database by making a direct request and then retrieving a .gz file from backups/.

Directory traversal vulnerability in backend/admin-functions.php in TorrentTrader Classic 1.09, when used on a case-insensitive web site, allows remote attackers to include and execute arbitrary local files via a .. (dot dot) in the ss_uri parameter, in conjunction with a modified component name.