This indicates an attack attempt against a Local File Include vulnerability in TinyWebGallery.
The vulnerability exists because the affected software fails to properly sanitize user-supplied input. This could allow remote attackers to execute arbitrary code via sending a crafted web page.
TinyWebGallery 1.7.6 is vulnerable; other versions may also be affected.
System Compromise: Remote attackers can gain control of vulnerable systems.
Upgrade to the latest version TinyWebGallery WG 1.7.7