8

CVSS Score

3.1

-

CVSS Score

Basic Information

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CVE-2025-52904

CVE-2025-52904: File Browser: Command Execution not Limited to Scope

File Browser provides a file managing interface within a specified directory and it can be used to upload, delete, preview, rename and edit files. In versions of the web application on the 2.x branch, all users have a scope assigned, and they only have access to the files within that scope. The Command Execution feature of Filebrowser allows the execution of shell commands which are not restricted to the scope, potentially giving an attacker read and write access to all files managed by the server. Until this issue is fixed, the maintainers recommend to completely disable Execute commands for all accounts. Since the command execution is an inherently dangerous feature that is not used by all deployments, it should be possible to completely disable it in the application's configuration. This feature has been disabled by default for all installations from v2.33.8 onwards, including for existent installations. To exploit this vulnerability, the instance administrator must turn on a feature and ignore all the warnings about known vulnerabilities.

(GitHub Advisory)

Miggo Vulnerability Database

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CVE-2025-52904

CVE-2025-52904:

8

CVSS Score

3.1

-

CVSS Score

Basic Information

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Technical Details

SSVC / BOD 26-04 ↗

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Package Name	Ecosystem	Vulnerable Versions	First Patched Version
github.com/filebrowser/filebrowser/v2	go	< 2.33.8	2.33.8

Technical Details

Vulnerability Intelligence
Miggo AI

Root Cause Analysis

I was unable to find a specific commit that introduced the vulnerability. The advisory and related issue #5199 indicate that the command execution feature is inherently insecure in its design within File Browser. Instead of a specific flaw, the vulnerability lies in the feature's existence, as it allows users with command execution permissions to run commands outside of their designated scope, with the same privileges as the File Browser server process.

The "fix" was to disable this feature by default, requiring an explicit configuration flag (--disable-exec=false) to enable it. This indicates that the core command execution logic remains, but is now behind a safeguard.

Based on the description, the vulnerable function is the one that handles the execution of shell commands. While I cannot pinpoint the exact function name from a specific commit, the vulnerability description makes it clear that such a function exists and is the source of the problem. The core of the vulnerability is that this function does not enforce the user's scope when executing commands.

Therefore, I am identifying the function responsible for command execution as the vulnerable function, even without a direct code reference from a patch. The evidence is the detailed description of the vulnerability, which unambiguously points to the command execution functionality as the source of the security issue. The reasoning is that any runtime profile during exploitation would have to go through the function that executes the shell commands.

Vulnerable functions

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WAF Rule

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Reasoning

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