Goal Reached Thanks to every supporter — we hit 100%!

Goal: 1000 CNY · Raised: 1359 CNY

100%
Buy Us a Coffee

CVE-2026-32758— File Browser has an Access Rule Bypass via Path Traversal in Copy/Rename Destination Parameter

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及之前版本存在安全漏洞，该漏洞源于resourcePatchHandler存在路径遍历，可能导致绕过管理员配置的拒绝规则。

CVSS 6.5 · Medium EPSS 0.44% · P36

Possible ATT&CK Techniques 1 AI

T1083 · File and Directory Discovery
Get alerts for future matching vulnerabilities Log in to subscribe

I. Basic Information for CVE-2026-32758

Vulnerability Information
Have questions about the vulnerability? See if Shenlong's analysis helps!
View Shenlong Deep Dive ↗

Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.

Vulnerability Title
File Browser has an Access Rule Bypass via Path Traversal in Copy/Rename Destination Parameter
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. Versions 2.61.2 and below are vulnerable to Path Traversal through the resourcePatchHandler (http/resource.go). The destination path in resourcePatchHandler is validated against access rules before being cleaned/normalized, while the actual file operation calls path.Clean() afterward—resolving .. sequences into a different effective path. This allows an authenticated user with Create or Rename permissions to bypass administrator-configured deny rules (both prefix-based and regex-based) by injecting .. sequences in the destination parameter of a PATCH request. As a result, the user can write or move files into any deny-rule-protected path within their scope. However, this cannot be used to escape the user's BasePathFs scope or read from restricted paths. This issue has been fixed in version 2.62.0.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
授权机制不正确
Source: CVE Program / CVE List V5
Vulnerability Title
File Browser 安全漏洞
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及之前版本存在安全漏洞，该漏洞源于resourcePatchHandler存在路径遍历，可能导致绕过管理员配置的拒绝规则。
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-2026-32758

# POC Description Source Link Shenlong Link
AI-Generated POC Premium

No public POC found.

Login to generate AI POC

III. Intelligence Information for CVE-2026-32758

请登录查看更多情报信息。

Patches & Fixes for CVE-2026-32758 (1)

Vendor Advisories for CVE-2026-32758 (1)

Vendor Pages for CVE-2026-32758 (1)

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

CVE-2026-32761 6.5 MEDIUM File Browser has an Authorization Policy Bypass in its Public Share Download Flow
CVE-2026-32760 File Browser Self Registration Grants Any User Admin Access When Default Permissions Inclu
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-863

V. Comments for CVE-2026-32758

No comments yet

Leave a comment