WebCalendar contains a flaw that allows an HTTP response splitting vulnerability. This flaw exists because the application does not validate parameter '$ret' upon submission to the 'layers_toggle.php' script. This could allow a user to create a specially crafted URL that would influence or misrepresent how Web content is served, cached or interpreted, leading to a loss of integrity.
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This section lists the latest news and blogs found via the daylife API (and for older items, the technorati API), which mention or otherwise discuss this vulnerability.