File Management Interface Vulnerability in File Browser
CVE-2026-62843

6.8MEDIUM

Key Information:

Vendor

Filebrowser

Status
Filebrowser
Vendor
CVE Published:
15 July 2026

What is CVE-2026-62843?

File Browser’s archive builder has a vulnerability that allows attackers to exploit improper handling of filenames during the archive creation process. Specifically, versions 2.63.6 to 2.63.16 incorrectly replace backslashes with forward slashes, enabling an attacker with upload rights to create an archive entry that escapes the intended extraction directory. This flaw can lead to unintended file access for users when they extract generated zip or tar archives. The issue was resolved in version 2.63.17.

Affected Version(s)

filebrowser >= 2.63.6, < 2.63.17

References

https://github.com/filebrowser/filebrowser/security/advis...
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https://github.com/filebrowser/filebrowser/commit/8503ba6...
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https://github.com/filebrowser/filebrowser/releases/tag/v...
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CVSS V3.1

Score:
6.8
Severity:
MEDIUM
Confidentiality:
None
Integrity:
High
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
Required
Scope:
Changed

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.