Summary
Acunetix 360 identified a version disclosure (Lua) in the target server's HTTP response.
This information can help an attacker gain a greater understanding of the systems in use and potentially develop further attacks targeted at the specific version of Lua.
Impact
An attacker might use the disclosed information to harvest specific security vulnerabilities for the version identified.
Remediation
Configure your web server to prevent information leakage from the X-Powered-By header of its HTTP response.