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CVE-2026-72837

File Browser before 2.63.20 Privilege Escalation via Proxy Authentication

Published: Aug 14, 2026Updated: Aug 14, 2026 Sources: CVE List NVDCWE-284
8.8HIGH
NVD MITRE
EPSS Score
0.3%
Top 78.0%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
No Fix Available
Self-Check
Not available

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.

No summary for this CVE yet.

CVSS Vector Breakdown

AV:NAC:LPR:LUI:NS:UC:HI:HA:H
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:LPrivileges Required
Low
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:HConfidentiality
High
I:HIntegrity
High
A:HAvailability
High
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Weaknesses

CWE-284

Affected Products

filebrowser
oss-project
filebrowserOn-prem
Web & CMS Plugins / site-builder

Exploitability

No known exploits, KEV entries, or remediation guidance available for this vulnerability yet.
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References

https://github.com/filebrowser/filebrowser/security/advisories/GHSA-j7jh-37pf-mf8h
github.com
https://www.vulncheck.com/advisories/file-browser-before-privilege-escalation-via-proxy-authentication
vulncheck.com

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