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Filebrowser CVE-2025-64523

HIGH
Improper Authorization (CWE-285)
2025-11-12 security-advisories@github.com
7.2
CVSS 4.0 · Vendor: github
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Vulnerability Assessment

Weakness
CWE
OWASP Top 10:2025
A01:2025 - Broken Access Control
ASVS 5.0
V8 - Authorization Authorization verification
MITRE ATT&CK

1 technique across 1 tactic: Defense Evasion

The technique list with ATT&CK links and the kill-chain view is part of the Basic plan and up.

Impact

CVSS score of 7.2 (HIGH). Attack characteristics: network attack vector, low complexity, low privileges required, no user interaction not required. Public proof-of-concept exploit code is available. EPSS exploitation probability: 0.11%.

Exploit ScenarioDerived

This vulnerability can be exploited remotely over the network. Successful exploitation could compromise the high-severity affected system.

This Week Schedule remediation this week. Why: HIGH severity (CVSS 7.0-8.9).
Patch available 0.1% exploitation probability (EPSS)

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AnalysisAIv1 – Mar 28, 2026

File Browser provides a file managing interface within a specified directory and it can be used to upload, delete, preview, rename and edit files. Rated high severity (CVSS 7.2), this vulnerability is remotely exploitable, low attack complexity. Public exploit code available.

RemediationAI

A vendor patch is available. Apply the latest security update as soon as possible. Apply vendor patches when available. Implement network segmentation and monitoring as interim mitigations.

Affected Packages

go github.com/filebrowser/filebrowser no fix
go github.com/filebrowser/filebrowser/v2 fix: 2.45.1

Source: OSV (Open Source Vulnerabilities)

Affects your stack

Affects 2 packages in go

Checking this CVE against your own stacks and servers is part of the Basic plan and up.

Technical ContextAI · show details

This vulnerability is classified under CWE-285. 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. Affected products include: Filebrowser. Version information: prior to 2.45.1.

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  • Exploit and PoC references, threat intelligence from 22 sources

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Severity by source

Vendor (github) PRIMARY 7.2 HIGH
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:H/VA:H/SC:N/SI:N/SA:N
SUSE HIGH

Primary rating from Vendor (github).

CVSS VectorVendor: github

Attack Vector
Network
Attack Complexity
Low
Attack Requirements
None
Privileges Required
Low
User Interaction
None
Vulnerable system: Confidentiality
Low
Vulnerable system: Integrity
High
Vulnerable system: Availability
High
Subsequent system: Confidentiality
None
Subsequent system: Integrity
None
Subsequent system: Availability
None

Lifecycle Timeline

3
Patch released
Mar 28, 2026 - 19:21 nvd
Patch available
PoC Detected
Feb 03, 2026 - 14:35 vuln.today
Public exploit code
CVE Published
Nov 12, 2025 - 23:15 nvd
HIGH 7.2

DescriptionCVE.org

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.

Executive ViewAI

Why It Matters

CVE-2025-64523 presents moderate security risk rated CVSS 7.2. Exploitation could compromise the security of affected deployments. Proof-of-concept code is publicly available, increasing the risk of exploitation. A patch is available and should be applied as part of regular vulnerability management.

Business Impact: Moderate
Compensating Controls

Apply vendor patch. If immediate patching is not feasible: (1) Implement network-level access controls to limit exposure; (2) Enable enhanced monitoring and alerting; (3) Apply principle of least privilege.

Threat Intelligence Overview

EPSS Score
0.1%
Top 71% exploitable
Exploit
POC
Public exploit code exists
Data Quality
5 sources
Confidence: Medium

How this decision was reached

The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.

SignalValue
Severity HIGH
CISA KEV No
Public POC Yes
EPSS 0.1%
Patch available Yes
Active threat No
Deciding rule
HIGH severity (CVSS 7.0-8.9)
What every action level means
Emergency Immediate action required. Criteria: CRITICAL + in CISA KEV (actively exploited) without patch, OR CRITICAL + EPSS > 30% without patch, OR CRITICAL + active threat signals without patch.
Act Now Prioritize within 24-48h. Criteria: in KEV with patch available, OR CRITICAL + public POC, OR HIGH + EPSS > 10%, OR CRITICAL + active threat, OR any CRITICAL severity.
This Week Schedule remediation this week. Criteria: HIGH severity (CVSS 7.0-8.9). Patch within normal change window.
This Month Plan within 30 days. Criteria: MEDIUM severity (CVSS 4.0-6.9), lower exploitation probability. Include in regular patch cycle.
Monitor Track and reassess. Criteria: LOW severity (CVSS 0.1-3.9), minimal exploitation risk. No immediate action needed.

SSVC AssessmentENISA

Exploitation· derived
Poc
System Exposure· derived
Open
Automatable· derived
No

Priority Score

56
Low Medium High Critical
KEV: 0
EPSS: 0
CVSS: +36
PoC: +20
Weaponized: 0
Threat intel: 0
Gov advisory: 0

Attack Technique

Authentication bypass attacks exploit flaws in the verification mechanisms that control access to systems and applications.

Denial of Service attacks render applications or systems unavailable by overwhelming resources or triggering failure conditions.

Affected Products (CPE)CVE.org

cpe:2.3:a:filebrowser:filebrowser:*:*:*:*:*:*:*:*
CVE-2026-29188 CRITICAL POC
9.1 Mar 05

Unauthorized file operations in File Browser before fix. PoC and patch available.

CVE-2023-39612 CRITICAL POC
9.0 Sep 16

A cross-site scripting (XSS) vulnerability in FileBrowser before v2.23.0 allows an authenticated attacker to escalate pr

CVE-2026-116682 HIGH POC
8.6 Oct 27

Symlink-following read paths in FileBrowser Quantum serve files from outside a user's assigned scope: download, preview,

CVE-2026-73612 HIGH POC
8.6 Aug 13

Recursive operation authorization bypass in File Browser before v2.63.22 permits any authenticated user to copy, rename,

CVE-2026-25890 HIGH POC
8.1 Feb 09

Path normalization bypass in Filebrowser prior to 2.57.1 allows authenticated users to circumvent file access restrictio

CVE-2025-52903 HIGH POC
8.0 Jun 26

File Browser provides a file managing interface within a specified directory and it can be used to upload, delete, previ

CVE-2025-52904 HIGH POC
8.0 Jun 26

File Browser provides a file managing interface within a specified directory and it can be used to upload, delete, previ

CVE-2025-52995 HIGH POC
8.0 Jun 30

File Browser provides a file managing interface within a specified directory and it can be used to upload, delete, previ

CVE-2026-54910 HIGH POC
7.7 Jul 20

Arbitrary file read in FileBrowser Quantum (gtsteffaniak/filebrowser) before 1.4.3-beta lets any authenticated user, reg

CVE-2026-73611 HIGH POC
7.6 Aug 13

File Browser versions 2.50.0 through 2.63.21 permit indefinite session persistence via expired JWT tokens when proxy aut

CVE-2025-52902 HIGH POC
7.6 Jun 26

File Browser provides a file managing interface within a specified directory and it can be used to upload, delete, previ

CVE-2026-73613 HIGH POC
7.2 Aug 13

Arbitrary file deletion in filebrowser before 2.63.19 allows authenticated users holding only Create permission to delet

Vendor StatusVendor

SUSE

Severity: Important
Product Status
SUSE Linux Enterprise Server 16.1 Affected
SUSE Linux Enterprise Server for SAP applications 16.1 Affected

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