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Advisories

File Browser before 2.63.20 Privilege Escalation via Proxy Authentication

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severity
high
date
Affecting

  • filebrowser >= 0, < 2.63.20

CWE
  • CWE-284 Improper Access Control
CVSS
8.7
CVSS V4 Vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
Credit
thesmartshadow, B1gN0Se, hacdias
Description
File Browser versions before 2.63.20 fail to honor the createUserDir isolation in proxy and hook authentication auto-provisioning paths. Attackers with valid upstream-authenticated credentials can read, modify, delete, and share files belonging to other users by exploiting the server root scope assignment.

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