Multiple PHP remote file inclusion vulnerabilities in BasiliX 1.1.1 and earlier allow remote attackers to execute arbitrary PHP code via a URL in the (1) BSX_LIBDIR parameter in scripts in /files/ including (a) abook.php3, (b) compose-attach.php3, (c) compose-menu.php3, (d) compose-new.php3, (e) compose-send.php3, (f) folder-create.php3, (g) folder-delete.php3, (h) folder-empty.php3, (i) folder-rename.php3, (j) folders.php3, (k) mbox-action.php3, (l) mbox-list.php3, (m) message-delete.php3, (n) message-forward.php3, (o) message-header.php3, (p) message-print.php3, (q) message-read.php3, (r) message-reply.php3, (s) message-replyall.php3, (t) message-search.php3, or (u) settings.php3; and the (2) BSX_HTXDIR parameter in (v) files/login.php3.

The attachment capability in Compose Mail in BasiliX Webmail 1.1.0 does not check whether the attachment was uploaded by the user or came from a HTTP POST, which could allow local users to steal sensitive information like a password file.

BasiliX 1.1.0 saves attachments in a world readable /tmp/BasiliX directory, which allows local users to read other users' attachments.

SQL injection vulnerability in BasiliX Webmail 1.10 allows remote attackers to obtain sensitive information or possibly modify data via the id variable.

Cross-site scripting vulnerability (XSS) in BasiliX Webmail 1.10 allows remote attackers to execute arbitrary script as other users by injecting script into the (1) subject or (2) message fields.

Directory traversal vulnerability in basilix.php3 in Basilix Webmail 1.0.3beta and earlier allows remote attackers to read arbitrary files via a .. (dot dot) in the request_id[DUMMY] parameter.

Basilix Webmail 0.9.7beta, and possibly other versions, stores *.class and *.inc files under the document root and does not restrict access, which could allows remote attackers to obtain sensitive information such as MySQL passwords and usernames from the mysql.class file.