CVE-2026-54088

EIP tracks 1 public exploit for CVE-2026-54088. PoCs published by Saku0512.

AI-analyzed exploit summary This repository contains a functional exploit PoC for CVE-2026-54088, a pre-authentication command injection vulnerability in File Browser's Hook Authentication feature. The exploit demonstrates arbitrary command execution by injecting shell syntax into the username field during login.

File Browser is a file managing interface for uploading, deleting, previewing, renaming, and editing files within a specified directory. Prior to 2.63.6, the Hook Authentication feature in File Browser allows administrators to delegate login verification to an external shell command. User-supplied credentials (username and password) are interpolated into this command string using os.Expand without sanitization. An unauthenticated remote attacker can inject shell metacharacters in the username or password field at the login screen, causing the server to execute arbitrary OS commands before any authentication takes place. This is a critical pre-authentication RCE. This vulnerability is fixed in 2.63.6.