TI-2025-39913 Aliases CVE-2025-64523 GHSA-6cqf-cfhv-659g

FileBrowser has Insecure Direct Object Reference (IDOR) in Share Deletion Function

HIGH 65CWE-285Published 2025-11-12 · Updated 2025-11-13

Key facts

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

Attack profile from CVSS 4.0 · CNA. Fix status from CNA and GitHub. Impact type from CWE-285.

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. Versions prior to 2.45.1 have an Insecure Direct Object Reference (IDOR) vulnerability in the FileBrowser application's share deletion functionality. This vulnerability allows any authenticated user with share permissions to delete other users' shared links without authorization checks. The impact is significant as malicious actors can disrupt business operations by systematically removing shared files and links. This leads to denial of service for legitimate users, potential data loss in collaborative environments, and breach of data confidentiality agreements. In organizational settings, this could affect critical file sharing for projects, presentations, or document collaboration. Version 2.45.1 contains a fix for the issue.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV

EPSS 0.00461 40th percentileScored 2026-11-07

Public exploit Yes 1 exploit referenceTagged by NVD

Fix Fixed filebrowser (filebrowser): 2.45.1github.com/filebrowser/filebrowser/v2 (Go): 2.45.1

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: Poc
Automatable: No
Technical impact: Partial

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

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
filebrowser	filebrowser	before 2.45.1	2.45.1	Patch available	CNA
—	github.com/filebrowser/filebrowser/v2 (Go)	before 2.45.1	2.45.1	Patch available	GHSA-6cqf-cfhv-659g

filebrowser Vendorfilebrowser Affected before 2.45.1 Fixed in 2.45.1 Patch available CNA
github.com/filebrowser/filebrowser/v2 (Go) Vendor— Affected before 2.45.1 Fixed in 2.45.1 Patch available GHSA-6cqf-cfhv-659g

CPE configurations NVD · 1

CPE	Versions	Role	Vendor
cpe:2.3:a:filebrowser:filebrowser::::::::	before 2.45.1	Vulnerable	filebrowser

cpe:2.3:a:filebrowser:filebrowser:*:*:*:*:*:*:*:* Versions before 2.45.1 Vulnerable ·filebrowser

Remediation

Fix · CNA filebrowser (filebrowser) Fixed in 2.45.1
Fix · GHSA-6cqf-cfhv-659g github.com/filebrowser/filebrowser/v2 (Go) Fixed in 2.45.1 Advisory →

Timeline

2026-10-02 Threatist record created from CVE-2025-64523
2026-10-03 Alias added: GHSA-6cqf-cfhv-659g

References

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