CVE-2026-72837
File Browser before 2.63.20 Privilege Escalation via Proxy Authentication
- State
- Published
- Severity
- 8.7 High
- Published
- Aug 14, 2026
- Updated
- Aug 14, 2026
- Reserved
- Aug 10, 2026
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 8.7 High | 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 | VulnCheck |
| 3.1 | 8.8 High | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H | VulnCheck |
Weaknesses
- CWE-284 Improper Access Control
Affected Products
| Product | Versions |
|---|---|
filebrowserfilebrowser |
|
References
- GitHub Security Advisory (GHSA-j7jh-37pf-mf8h)vendor-advisory
- VulnCheck Advisory: File Browser before 2.63.20 Privilege Escalation via Proxy Authenticationthird-party-advisory
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