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.
In LuxSoft LuxCal Web Calendar before 5.2.0, an unauthenticated attacker can manipulate a cookie value. This allows the attacker's session to be authenticated as any registered LuxCal user, including the site administrator.