Mantis before 1.1.3 does not unset the session cookie during logout, which makes it easier for remote attackers to hijack sessions.

core/stringapi.php in Mantis before 1.1.3 does not check the privileges of the viewer before composing a link with issue data in the source anchor, which allows remote attackers to discover an issue's title and status via a request with a modified issue number.

manageprojpage.php in Mantis before 1.1.4 allows remote authenticated users to execute arbitrary code via a sort parameter containing PHP sequences, which are processed by createfunction within the multisort function in core/utilityapi.php.

Cross-site scripting (XSS) vulnerability in returndynamicfilters.php in Mantis before 1.1.2 allows remote attackers to inject arbitrary web script or HTML via the filtertarget parameter.

Eval injection vulnerability in admconfigset.php in Mantis before 1.1.2 allows remote authenticated administrators to execute arbitrary code via the value parameter.

Directory traversal vulnerability in core/langapi.php in Mantis before 1.1.2 allows remote attackers to include and execute arbitrary files via the language parameter to the user preferences page (accountprefsupdate.php).

Cross-site scripting (XSS) vulnerability in Mantis before 1.1.1 allows remote attackers to inject arbitrary web script or HTML via vectors related to the "Most active bugs" summary.