Arbitrary File Write Vulnerability in File Browser by FileBrowser
CVE-2026-54093

6.8MEDIUM

Key Information:

Vendor

Filebrowser

Status
Filebrowser
Vendor
CVE Published:
25 June 2026

What is CVE-2026-54093?

File Browser, a versatile file management interface, has a security flaw that allows attackers to exploit Windows-style path traversal when handling file names. This flaw leads to the potential for arbitrary file write on Linux systems when users download and extract specially crafted ZIP or TAR files. Though the application correctly processes file paths on Linux, it fails to sanitize backslashes, resulting in unsafe file extractions beyond designated directories. Users should upgrade to version 2.63.6 to remediate this vulnerability.

Affected Version(s)

filebrowser < 2.63.6

References

https://github.com/filebrowser/filebrowser/security/advis...
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CVSS V4

Score:
6.8
Severity:
MEDIUM
Confidentiality:
None
Integrity:
High
Availability:
None
Attack Vector:
Local
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
Unknown

Timeline

  • Vulnerability published

  • Vulnerability Reserved

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