File Browser Allows Execution of Shell Commands That Can Spawn Other Commands

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Summary

CVECVE-2025-52903
StatePUBLISHED
AssignerGitHub_M
Source PriorityCVE Program / NVD first with legacy fallback
Published2025-06-26 19:15:21 UTC
Updated2026-06-09 13:16:35 UTC
DescriptionFile 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 on the 2.x branch prior to 2.33.10, the Command Execution feature of File Browser only allows the execution of shell command which have been predefined on a user-specific allowlist. Many tools allow the execution of arbitrary different commands, rendering this limitation void. The concrete impact depends on the commands being granted to the attacker, but the large number of standard commands allowing the execution of subcommands makes it likely that every user having the `Execute commands` permissions can exploit this vulnerability. Everyone who can exploit it will have full code execution rights with the uid of the server process. Version 2.33.10 contains a check for whether a command is allowed when using shell.

Risk And Classification

Primary CVSS: v3.1 8 HIGH from [email protected]

CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H

EPSS: 0.009060000 probability, percentile 0.550000000 (date 2026-06-15)

Problem Types: CWE-77 | CWE-77 CWE-77: Improper Neutralization of Special Elements used in a Command ('Command Injection')

VersionSourceTypeScoreSeverityVector
3.1[email protected]Secondary8HIGHCVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H
3.1CNADECLARED8HIGHCVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H

CVSS v3.1 Breakdown

Attack Vector
Network
Attack Complexity
High
Privileges Required
High
User Interaction
None
Scope
Changed
Confidentiality
High
Integrity
High
Availability
High

CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Application Filebrowser Filebrowser 2.32.0 All All All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Filebrowser Filebrowser affected >= 2.0.0, < 2.33.10 Not specified

References

ReferenceSourceLinkTags
github.com/filebrowser/filebrowser/issues/5199 [email protected] github.com Issue Tracking
github.com/GoogleContainerTools/distroless [email protected] github.com Product
manpages.debian.org/bookworm/util-linux/prlimit.1.en.html [email protected] manpages.debian.org Technical Description
github.com/filebrowser/filebrowser/security/advisories/GHSA-3q2w-42mv-cph4 134c704f-9b21-4f2e-91b3-4a467353bcc0 github.com Exploit, Mitigation, Vendor Advisory
pkg.go.dev/vuln/GO-2025-3786 [email protected] pkg.go.dev
github.com/sbaresearch/advisories/tree/public/2025/SBA-ADV-20250326-02_F... [email protected] github.com
github.com/filebrowser/filebrowser/commit/4d830f707fc4314741fd431e70c2ce... [email protected] github.com
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