BosDates contains a flaw that allows a remote cross site scripting attack.  This flaw exists because the application does not validate the "type" variable upon submission to the calendar.php script or the "category" parameter in the calendar_search.php script.  This could allow a user to create a specially crafted URL that would execute arbitrary code in a user's browser within the trust relationship between the browser and the server, leading to a loss of integrity.

References:

BID: 28117

CVE-2008-1211

OSVDB: 42604

OSVDB: 42605

Secunia: 29255

SecWatch  

XF: 41020  

Vendor Solution