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.

account-recover.php in TorrentTrader Classic 1.09 chooses random passwords from an insufficiently large set, which makes it easier for remote attackers to obtain a password via a brute-force attack.

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.

SQL injection vulnerability in scrape.php in TorrentTrader before 2008-05-13 allows remote attackers to execute arbitrary SQL commands via the info_hash parameter.

SQL injection vulnerability in completed-advance.php in TorrentTrader Classic 1.08 and 1.04 and earlier allows remote attackers to execute arbitrary SQL commands via the id parameter.

Multiple SQL injection vulnerabilities in TorrentTrader 1.08 Classic allow remote attackers to execute arbitrary SQL commands via the (1) email or (2) wantusername parameter to account-signup.php, or the (3) receiver parameter to account-inbox.php in a msg action.

Cross-site request forgery (CSRF) vulnerabilities in account-inbox.php in TorrentTrader Classic 1.08 allow remote attackers to perform certain actions as other users, as demonstrated by sending messages.