Read the docs
TI-2026-22755 Aliases CVE-2026-28492GHSA-mr74-928f-rw69

File Browser: Path Traversal in Public Share Links Exposes Files Outside Shared Directory

Priority HIGH 70CWE-200Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
None
Attack complexity
Low
Attack requirements
None
Impact type
Information disclosure
Confidentiality · integrity · availability
High · None · None
Fix status
Fixed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA and GitHub. Impact type from CWE-200.

Summary

File Browser provides a file managing interface within a specified directory and it can be used to upload, delete, preview, rename and edit files. Prior to version 2.61.0, when a user creates a public share link for a directory, the withHashFile middleware in http/public.go uses filepath.Dir(link.Path) to compute the BasePathFs root. This sets the filesystem root to the parent directory instead of the shared directory itself, allowing anyone with the share link to browse and download files from all sibling directories. This issue has been patched in version 2.61.0.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00374 31st percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix Fixed filebrowser (filebrowser): 2.61.0github.com/filebrowser/filebrowser/v2 (Go): 2.61.0

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Poc
Automatable
Yes
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
filebrowserfilebrowserbefore 2.61.02.61.0Patch availableCNA
—github.com/filebrowser/filebrowser/v2 (Go)before 2.61.02.61.0Patch availableGHSA-mr74-928f-rw69
  • filebrowser Vendorfilebrowser Affected before 2.61.0 Fixed in 2.61.0 Patch available CNA
  • github.com/filebrowser/filebrowser/v2 (Go) Vendor— Affected before 2.61.0 Fixed in 2.61.0 Patch available GHSA-mr74-928f-rw69

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:filebrowser:filebrowser:*:*:*:*:*:*:*:*2.0.0 to before 2.61.0Vulnerablefilebrowser
  • cpe:2.3:a:filebrowser:filebrowser:*:*:*:*:*:*:*:* Versions 2.0.0 to before 2.61.0 Vulnerable ·filebrowser

Remediation

  • Fix · CNA filebrowser (filebrowser) Fixed in 2.61.0
  • Fix · GHSA-mr74-928f-rw69 github.com/filebrowser/filebrowser/v2 (Go) Fixed in 2.61.0 Advisory →

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-28492
  2. 2026-10-03 Alias added: GHSA-mr74-928f-rw69

References

Exploit 1

Patch 1

Advisory 1

Other 2

  • TI-2026-25251 File Browser Self Registration Grants Any User Admin Access When Default Permissions Include Admin CVSS 4.0CRITICAL 10.0
  • TI-2026-23305 File Browser: TUS Delete Endpoint Bypasses Delete Permission Check CVSS 3.1CRITICAL 9.1
  • TI-2026-26777 File Browser's Signup Grants Execution Permissions When Default Permissions Includes Execution CVSS 3.1CRITICAL 9.8
  • TI-2025-33000 File Browser vulnerable to command execution allowlist bypass CVSS 3.1HIGH 8.1
  • TI-2026-23759 FileBrowser Quantum: Stored XSS in public share page via unsanitized share metadata (text/template misuse) CVSS 3.1HIGH 8.9
  • TI-2023-20699 A cross-site scripting (XSS) vulnerability in FileBrowser before v2.23.0 allows an… CVSS 3.1CRITICAL 9.0
See all 31 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences