In LuxSoft LuxCal Web Calendar before 5.2.0, an unauthenticated attacker can manipulate a POST request. This allows the attacker's session to be authenticated as any registered LuxCal user, including the site administrator.
SQL injection vulnerability in LuxCal Web Calendar prior to 5.2.4M (MySQL version) and LuxCal Web Calendar prior to 5.2.4L (SQLite version) allows a remote unauthenticated attacker to execute an arbitrary SQL command by sending a crafted request, and obtain or alter information stored in the database.