CVE-2026-34528

8.1 HIGH
Published: April 01, 2026 Modified: April 06, 2026
View on NVD

Description

File Browser is a file managing interface for uploading, deleting, previewing, renaming, and editing files within a specified directory. Prior to version 2.62.2, the signupHandler in File Browser applies default user permissions via d.settings.Defaults.Apply(user), then strips only Admin. The Execute permission and Commands list from the default user template are not stripped. When an administrator has enabled signup, server-side execution, and set Execute=true in the default user template, any unauthenticated user who self-registers inherits shell execution capabilities and can run arbitrary commands on the server. This issue has been patched in version 2.62.2.

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CVSS v3.x Details

0.0 Low Medium High Critical 10.0
Vector String
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

References to Advisories, Solutions, and Tools

Patch Vendor Advisory Exploit Third Party Advisory
https://github.com/filebrowser/filebrowser/releases/tag/v2.62.2
Source: security-advisories@github.com
Product Release Notes
https://github.com/filebrowser/filebrowser/security/advisories/GHSA-x8jc-jvqm-pm3f
Source: security-advisories@github.com
Exploit Mitigation Vendor Advisory
https://github.com/filebrowser/filebrowser/security/advisories/GHSA-x8jc-jvqm-pm3f
Source: 134c704f-9b21-4f2e-91b3-4a467353bcc0
Exploit Mitigation Vendor Advisory

3 reference(s) from NVD

Quick Stats

CVSS v3 Score
8.1 / 10.0
EPSS (Exploit Probability)
0.2%
39th percentile
Exploitation Status
Not in CISA KEV

Weaknesses (CWE)

Affected Vendors

filebrowser