Multiple directory traversal vulnerabilities in phpCommunity 2 2.1.8 allow remote attackers to read arbitrary files via a .. (dot dot) in the (1) file parameter to module/admin/files/show_file.php and the (2) path parameter to module/admin/files/show_source.php.

Multiple SQL injection vulnerabilities in phpCommunity 2 2.1.8, when magic_quotes_gpc is disabled, allow remote attackers to execute arbitrary SQL commands via (1) the forum_id parameter in a forum action to index.php, (2) the topic_id parameter in a forum action to index.php, (3) the wert parameter in an id search action to index.php, (4) the wert parameter in a nick search action to index.php, or (5) the wert parameter in a forum search action to index.php, related to class_forum.php and class_search.php.

Cross-site scripting (XSS) vulnerability in templates/1/login.php in phpCommunity 2 2.1.8 allows remote attackers to inject arbitrary web script or HTML via the msg parameter.