Mantis before 20041016 provides a complete Issue History (Bug History) in the web interface regardless of view_history_threshold, which allows remote attackers to obtain sensitive information (private bug details) by visiting a bug's web page.
Cross-site scripting (XSS) vulnerability in Mantis bugtracker allows remote attackers to inject arbitrary web script or HTML via (1) the return parameter to login_page.php, (2) e-mail field in signup.php, (3) action parameter to login_select_proj_page.php, or (4) hide_status parameter to view_all_set.php.
Multiple SQL injection vulnerabilities in Mantis 0.17.2 and earlier, when running without magic_quotes_gpc enabled, allows remote attackers to gain privileges or perform unauthorized database operations via modified form fields, e.g. to account_update.php.
print_all_bug_page.php in Mantis 0.17.3 and earlier does not verify the limit_reporters option, which allows remote attackers to view bug summaries for bugs that would otherwise be restricted.
summary_graph_functions.php in Mantis 0.17.3 and earlier allows remote attackers to execute arbitrary PHP code by modifying the g_jpgraph_path parameter to reference the location of the PHP code.
config_inc2.php in Mantis before 0.17.4 allows remote attackers to execute arbitrary code or read arbitrary files via the parameters (1) g_bottom_include_page, (2) g_top_include_page, (3) g_css_include_file, (4) g_meta_include_file, or (5) a cookie.
Mantis 0.17.4a and earlier allows remote attackers to view private bugs by modifying the f_id bug ID parameter to (1) bug_update_advanced_page.php, (2) bug_update_page.php, (3) view_bug_advanced_page.php, or (4) view_bug_page.php.
The "View Bugs" page (view_all_bug_page.php) in Mantis 0.17.4a and earlier includes summaries of private bugs for users that do not have access to any projects.