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.

signup_page.php in Mantis bugtracker allows remote attackers to send e-mail bombs by creating multiple users and providing the same e-mail address.

Mantis before 0.17.4 allows remote attackers to list project bugs without authentication by modifying the cookie that is used by the "View Bugs" page.

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.

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.

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.

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.

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.

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.