Local File Inclusion (LFI)
Local File Inclusion (LFI) is a security vulnerability that allows a hacker to include a file, usually exploiting a “dynamic file inclusion” mechanism implemented in the target application. The Local File Inclusion vulnerability is created when the developer fails to ensure data validation of user-supplied inputs. Local File Inclusion attacks can lead to information disclosure, XSS (cross-site scripting), and RCE (remote code execution). Local File Inclusion is closely related to Remote File Inclusion (RFI). However, an attacker using LFI only includes local files (not remote files, as in the case of RFI).
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