MyBB Remote Code Execution

Summary
MyBB's unset_globals() function can be bypassed under special conditions and it is possible to allows remote code execution.
Impact
Successfully exploiting this issue will allow attackers to execute arbitrary code within the context of the affected application.
Solution
Updates are available.
Affected
MyBB <= 1.8.2
Detection
Send a large special crafted HTTP GET request and check the response.
References