@Mail WebMail Client in AtMail Open-Source before 1.05 allows remote attackers to execute arbitrary code via an e-mail attachment with an executable extension, leading to the creation of an executable file under tmp/.

compose.php in @Mail WebMail Client in AtMail Open-Source before 1.05 does not properly handle ../ (dot dot slash) sequences in the unique parameter, which allows remote attackers to conduct directory traversal attacks and read arbitrary files via a ..././ (dot dot dot slash dot slash) sequence.

Multiple directory traversal vulnerabilities in (1) compose.php and (2) libs/Atmail/SendMsg.php in @Mail WebMail Client in AtMail Open-Source before 1.05 allow remote attackers to read arbitrary files via a .. (dot dot) in the Attachment[] parameter.

CRLF injection vulnerability in mime.php in @Mail WebMail Client in AtMail Open-Source before 1.05 allows remote attackers to conduct directory traversal attacks and read arbitrary files via a %0A sequence followed by a .. (dot dot) in the file parameter.

@Mail WebMail Client in AtMail Open-Source 1.04 and earlier allows remote attackers to obtain configuration information via a direct request to install/info.php, which calls the phpinfo function.

Multiple cross-site scripting (XSS) vulnerabilities in AtMail Open (aka AtMail Open-Source edition) 1.04 allow remote attackers to inject arbitrary web script or HTML via the func parameter to (1) ldap.php or (2) search.php.