The mc_issue_note_update function in the SOAP API in MantisBT before 1.2.11 does not properly check privileges, which allows remote attackers with bug reporting privileges to edit arbitrary bugnotes via a SOAP request.

admin/upgrade_unattended.php in MantisBT before 1.2.4 allows remote attackers to obtain sensitive information via an invalid db_type parameter, which reveals the installation path in an error message, related to an unsafe call by MantisBT to a function in the ADOdb Library for PHP.

Directory traversal vulnerability in admin/upgrade_unattended.php in MantisBT before 1.2.4 allows remote attackers to include and execute arbitrary local files via a .. (dot dot) in the db_type parameter, related to an unsafe call by MantisBT to a function in the ADOdb Library for PHP.

Cross-site scripting (XSS) vulnerability in admin/upgrade_unattended.php in MantisBT before 1.2.4 allows remote attackers to inject arbitrary web script or HTML via the db_type parameter, related to an unsafe call by MantisBT to a function in the ADOdb Library for PHP.

Cross-site scripting (XSS) vulnerability in core/summary_api.php in MantisBT before 1.2.3 allows remote attackers to inject arbitrary web script or HTML via the Summary field, a different vector than CVE-2010-3303.

Multiple cross-site scripting (XSS) vulnerabilities in MantisBT before 1.2.3 allow remote authenticated administrators to inject arbitrary web script or HTML via (1) a plugin name, related to manage_plugin_uninstall.php; (2) an enumeration value or (3) a String value of a custom field, related to core/cfdefs/cfdef_standard.php; or a (4) project or (5) category name to print_all_bug_page_word.php.

Cross-site scripting (XSS) vulnerability in MantisBT before 1.2.2 allows remote authenticated users to inject arbitrary web script or HTML via an HTML document with a .gif filename extension, related to inline attachments.