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CVE-2025-52902
June 26, 2025
File Browser provides a file managing interface within a specified directory and it can be used to upload, delete, preview, rename and edit files. The Markdown preview function of File Browser prior to v2.33.7 is vulnerable to Stored Cross-Site-Scripting (XSS). Any JavaScript code that is part of a Markdown file uploaded by a user will be executed by the browser. Version 2.33.7 contains a fix for the issue.
Affected Packages
https://github.com/filebrowser/filebrowser.git (GITHUB):
Affected version(s) >=v1.0.0 <v2.33.7
Fix Suggestion:
Update to version v2.33.7
github.com/filebrowser/filebrowser/v2 (GO):
Affected version(s) >=v2.0.0-rc.1 <v2.33.7
Fix Suggestion:
Update to version v2.33.7
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CVSS v4
Base Score:
8.3
Attack Vector
NETWORK
Attack Complexity
LOW
Attack Requirements
NONE
Privileges Required
LOW
User Interaction
PASSIVE
Vulnerable System Confidentiality
HIGH
Vulnerable System Integrity
LOW
Vulnerable System Availability
NONE
Subsequent System Confidentiality
HIGH
Subsequent System Integrity
LOW
Subsequent System Availability
NONE
CVSS v3
Base Score:
7.6
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
REQUIRED
Scope
CHANGED
Confidentiality
HIGH
Integrity
LOW
Availability
NONE
Weakness Type (CWE)
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Improper Neutralization of Script-Related HTML Tags in a Web Page (Basic XSS)
EPSS
Base Score:
0.02