bug_report.php in MantisBT before 1.2.18 allows remote attackers to assign arbitrary issues via the handler_id parameter.

core/string_api.php in MantisBT before 1.2.18 does not properly categorize URLs when running under the web root, which allows remote attackers to conduct open redirect and phishing attacks via a crafted URL in the return parameter to login_page.php.

Cross-site scripting (XSS) vulnerability in admin/copy_field.php in MantisBT before 1.2.18 allows remote attackers to inject arbitrary web script or HTML via the dest_id field.

Cross-site scripting (XSS) vulnerability in the projax_array_serialize_for_autocomplete function in core/projax_api.php in MantisBT 1.1.0a3 through 1.2.17 allows remote attackers to inject arbitrary web script or HTML via the "profile/Platform" field.

The print_test_result function in admin/upgrade_unattended.php in MantisBT 1.1.0a3 through 1.2.x before 1.2.18 allows remote attackers to obtain database credentials via a URL in the hostname parameter and reading the parameters in the response sent to the URL.

The current_user_get_bug_filter function in core/current_user_api.php in MantisBT before 1.2.18 allows remote attackers to execute arbitrary PHP code via the filter parameter.

MantisBT before 1.2.18 uses the public_key parameter value as the key to the CAPTCHA answer, which allows remote attackers to bypass the CAPTCHA protection mechanism by leveraging knowledge of a CAPTCHA answer for a public_key parameter value, as demonstrated by E4652 for the public_key value 0.

Multiple SQL injection vulnerabilities in view_all_bug_page.php in MantisBT before 1.2.18 allow remote attackers to execute arbitrary SQL commands via the (1) sort or (2) dir parameter to view_all_set.php.

MantisBT before 1.2.18 allows remote authenticated users to bypass the $g_download_attachments_threshold and $g_view_attachments_threshold restrictions and read attachments for private projects by leveraging access to a project that does not restrict access to attachments and a request to the download URL.

Cross-site scripting (XSS) vulnerability in the selection list in the filters in the Configuration Report page (adm_config_report.php) in MantisBT 1.2.13 through 1.2.17 allows remote administrators to inject arbitrary web script or HTML via a crafted config option, a different vulnerability than CVE-2014-8987.