CVE-2026-27611

HIGH EPSS 22.3%
Published Feb 25, 20264mo ago · Modified Jun 17, 20262w ago
7.1 CVSS 4.0
High
Find Similar
Published Feb 25, 2026 4mo ago
Last Modified Jun 17, 2026 2w ago

Description

FileBrowser Quantum is a free, self-hosted, web-based file manager. Prior to versions 1.1.3-stable and 1.2.6-beta, when users share password-protected files, the recipient can completely bypass the password and still download the file. This happens because the API returns a direct download link in the details of the share, which is accessible to anyone with JUST THE SHARE LINK, even without the password. Versions 1.1.3-stable and 1.2.6-beta fix the issue.

CVSS Details

Base Score
7.1
Exploitability
—
Impact
—
Vector string
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:H/VI:L/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction P
Scope X

Threat Intelligence

EPSS Exploit Probability
22.3% percentile
Exploit & Patch Status
Public Exploit Known
Patch Available

Weaknesses 3

CWE-200 Exposure of Sensitive Information to an Unauthorized Actor Information Exposure
CWE-287 Improper Authentication Authentication
CWE-288

Affected Products 3

VendorProductVersionRange
gtsteffaniakfilebrowser_quantum* <1.1.3
gtsteffaniakfilebrowser_quantum*≥1.2.0  –  <1.2.6
gtsteffaniakfilebrowser_quantum1.1.3any

References 2

  • github.com https://github.com/gtsteffaniak/filebrowser/commit/c51b0ee9738fa4599b409f47c5bf820ef31b4fe1
    Patch
  • github.com https://github.com/gtsteffaniak/filebrowser/security/advisories/GHSA-8vrh-3pm2-v4v6
    ExploitVendor Advisory

Remediation

  • github.com https://github.com/gtsteffaniak/filebrowser/commit/c51b0ee9738fa4599b409f47c5bf820ef31b4fe1
    Patch