Directory traversal vulnerability in error.php in Uebimiau Webmail 2.7.10 and 2.7.2 allows remote authenticated users to read arbitrary files via a .. (dot dot) in the selected_theme parameter, a different vector than CVE-2007-3172.

Uebimiau Webmail 2.7.10 and 2.7.2 does not protect authentication state variables from being set through HTTP requests, which allows remote attackers to bypass authentication via a sess[auth]=1 parameter settting. NOTE: this can be leveraged to conduct directory traversal attacks without authentication by using CVE-2008-0140.