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CVE-2026-32760— File Browser Self Registration Grants Any User Admin Access When Default Permissions Include Admin

Quick assessment

Affected
filebrowser filebrowser
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

File Browser是File Browser开源的一个文件管理界面，在指定的目录，它可以用来上传，删除，预览和编辑文件。 File Browser 2.61.2及之前版本存在访问控制错误漏洞，该漏洞源于注册处理程序未剥离管理员权限，可能导致未经身份验证的访客注册为完全管理员账户。

AI Predicted 9.8 Difficulty: Trivial EPSS 0.69% · P51
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I. Basic Information for CVE-2026-32760

Vulnerability Information
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Vulnerability Title
File Browser Self Registration Grants Any User Admin Access When Default Permissions Include Admin
Source: CVE Program / CVE List V5
Vulnerability Description
File Browser is a file managing interface for uploading, deleting, previewing, renaming, and editing files within a specified directory. In versions 2.61.2 and below, any unauthenticated visitor can register a full administrator account when self-registration (signup = true) is enabled and the default user permissions have perm.admin = true. The signup handler blindly applies all default settings (including Perm.Admin) to the new user without any server-side guard that strips admin from self-registered accounts. The signupHandler is supposed to create unprivileged accounts for new visitors. It contains no explicit user.Perm.Admin = false reset after applying defaults. If an administrator (intentionally or accidentally) configures defaults.perm.admin = true and also enables signup, every account created via the public registration endpoint is an administrator with full control over all files, users, and server settings. This issue has been resolved in version 2.62.0.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H
Source: CVE Program / CVE List V5
Vulnerability Type
特权管理不恰当
Source: CVE Program / CVE List V5
Vulnerability Title
File Browser 访问控制错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
File Browser是File Browser开源的一个文件管理界面，在指定的目录，它可以用来上传，删除，预览和编辑文件。 File Browser 2.61.2及之前版本存在访问控制错误漏洞，该漏洞源于注册处理程序未剥离管理员权限，可能导致未经身份验证的访客注册为完全管理员账户。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
filebrowser filebrowser < 2.62.0 -

II. Public POCs for CVE-2026-32760

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III. Intelligence Information for CVE-2026-32760

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Patches & Fixes for CVE-2026-32760 (1)

Vendor Advisories for CVE-2026-32760 (1)

Vendor Pages for CVE-2026-32760 (1)

Same Patch Batch · filebrowser · 2026-03-19 · 4 CVEs total

CVE-2026-32758 6.5 MEDIUM File Browser has an Access Rule Bypass via Path Traversal in Copy/Rename Destination Param
CVE-2026-32761 6.5 MEDIUM File Browser has an Authorization Policy Bypass in its Public Share Download Flow
CVE-2026-32759 File Browser TUS Negative Upload-Length Fires Post-Upload Hooks Prematurely

IV. Related Vulnerabilities

Same product: filebrowser
Same vendor: filebrowser
Same weakness: CWE-269

V. Comments for CVE-2026-32760

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