Centrinity FirstClass 8.3 and earlier, and Server and Internet Services 8.0 and earlier, do not properly handle a URL with a null ("%00") character, which allows remote attackers to conduct cross-site scripting (XSS) attacks. NOTE: the provenance of this information is unknown; the details are obtained solely from third party information.

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Centrinity FirstClass 7.1 allows remote attackers to access sensitive information by appending search to the end of the URL and checking all of the search option checkboxes and leaving the text field blank, which will return all files in the searched directory.

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Centrinity First Class Internet Services 5.50 allows for the circumventing of the default 'spam' filters via the presence of '<@>' in the 'From:' field, which allows remote attackers to send spoofed email with the identity of local users.

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