Emefa Guestbook 3.0 stores sensitive information under the web root with insufficient access control, which allows remote attackers to download the database file via a direct request for guestbook.mdb.

Cross-site scripting (XSS) vulnerability in sign.asp in Emefa Guestbook 1.2 allows remote attackers to inject arbitrary web script or HTML via the (1) name, (2) location, and (3) email parameters.