formmail.php in Jetbox CMS 2.1 allows remote attackers to send arbitrary e-mails (spam) via modified recipient, _SETTINGS[allowed_email_hosts][], and subject parameters.
Affected Platforms
Microsoft Windows 98Hp Tru64Microsoft Windows 98SeSun SolarisSanta Cruz Operation Sco UnixMicrosoft Windows NtMicrosoft Windows MeJetbox Jetbox CmsMicrosoft Windows XpApple Mac Os X