CVE-2026-62843

MediumCVSS 6.8/10Last modified Jul 15, 2026

Description

File Browser is a file managing interface for uploading, deleting, previewing, renaming, and editing files within a specified directory. From 2.63.6 to 2.63.16, File Browser's archive builder uses strings.ReplaceAll(nameInArchive, "\", "/"), which turns a POSIX filename such as ..\..\evil.sh into the archive entry ../../evil.sh, allowing a user with upload permission to plant a backslash-named file that escapes the extraction directory when another user downloads and extracts the generated zip or tar archive. This issue is fixed in version 2.63.17.

Metrics

CVSS 3.1 6.8/10CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:N/I:H/A:N

Weakness enumeration

CWE-22 CWE-23

Affected software

Vendor	Product	Versions
filebrowser	filebrowser	>= 2.63.6, < 2.63.17

References

Timeline

Published: Jul 15, 2026
Last modified: Jul 15, 2026
NVD status: Deferred

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