html/index.php in TorrentFlux 2.3 allows remote authenticated users to execute arbitrary code via a URL with a file containing an executable extension in the url_upload parameter, which is downloaded by TorrentFlux and can be accessed via a direct request in a html/downloads/ user directory.
maketorrent.php in TorrentFlux 2.2 allows remote authenticated users to execute arbitrary commands via shell metacharacters (";" semicolon) in the announce parameter.
index.php for TorrentFlux 2.2 allows remote registered users to execute arbitrary commands via shell metacharacters in the kill parameter.
metaInfo.php in TorrentFlux 2.2, when $cfg["enable_file_priority"] is false, allows remote attackers to execute arbitrary commands via shell metacharacters (backticks) in the torrent parameter to (1) details.php and (2) startpop.php.