A vulnerability has been discovered in the GCalendar component for Joomla, which can be exploited by malicious people to conduct SQL injection attacks.
Input passed via the "gcid" parameter to index.php (when "option" is set to "com_gcalendar" and "view" is set to "event") is not properly sanitised before being used in a SQL query. This can be exploited to manipulate SQL queries by injecting arbitrary SQL code.
The vulnerability is confirmed in version 2.1.4. Other versions may also be affected.
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