CVE-2026-72837CWE-284broken-access-control

CVE-2026-72837

High · published August 14, 2026

CVSS v3.1
8.8
EPSS
1%
Percentile
45.7
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
8.8 · HIGH
Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CVSS v4.0
8.7 · 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
EPSS
0.00558 · 45.7th percentile
Weakness
CWE-284 · Improper Access Control
Published
2026-08-14T16:16Z
References (2)
https://github.com/filebrowser/filebrowser/security/advisories/GHSA-j7jh-37pf-mf8h · [email protected]https://www.vulncheck.com/advisories/file-browser-before-privilege-escalation-via-proxy-authentication · [email protected]
EPSS history
Timeline
  • 14 AUG 11:35Z
    File Browser before 2.63.20 Privilege Escalation via Proxy Authentication
    cvelistv5