Description: Donnie Werner has reported a vulnerability in SiteStudio and H-Sphere, which can be exploited by malicious people to conduct script insertion attacks.
Input passed to the "name" field in the guestbook is not properly sanitised before being used. This can be exploited to inject arbitrary HTML and script code, which will be executed in a user's browser session in context of an affected site when the malicious user data is viewed.
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