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Vulnerabilities

CVE-2026-54088 | BDVDB-2026-343306 Detail

filebrowserfilebrowser

Description#

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.

Impact#

Per CVSS v4.0: confidentiality impact high, integrity impact high, availability impact high. Attack vector: network.

Weaknesses#

  • CWE-78 Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
  • CWE-88 Improper Neutralization of Argument Delimiters in a Command ('Argument Injection')
  • CWE-306 Missing Authentication for Critical Function

References#

Exploit#

No public exploit known

History#

  1. Version 1Record published in the CVE List.