ExtCalendar2 SQL Injection and Authentcation Bypass Vulnerabilities

Summary
This host is ExtCalendar2 and is prone to sql injection and authentcation bypass vulnerabilities.
Impact
Successful exploitation will allow attacker to gain the administrator privileges and sensitive information. Impact Level: Application
Solution
No solution or patch was made available for at least one year since disclosure of this vulnerability. Likely none will be provided anymore. General solution options are to upgrade to a newer release, disable respective features, remove the product or replace the product by another one.
Insight
The flaw is due to improper validation of user-supplied input passed via the cookie to '/admin_events.php'.
Affected
ExtCalendar2
References