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

Goal: 1000 CNY · Raised: 1359 CNY

100%
Buy Us a Coffee

CVE-2026-54094— File Browser: Symlink following lets scoped users read, overwrite, and share files outside their filebrowser scope

Quick assessment

Affected
filebrowser filebrowser
Exploitation
Public or AI PoC available; prioritize validation
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

File Browser File Browser是File Browser团队的一款文件浏览管理软件。 File Browser 2.63.14之前版本存在安全漏洞，该漏洞源于未阻止HTTP文件处理器在打开、提供、写入、共享或列出文件之前跟随符号链接，可能导致限定用户或未经身份验证的共享接收者通过路径在限定范围内但其目标在限定范围之外的符号链接绕过预期范围边界。

CVSS 7.5 · High EPSS 0.50% · P41

Possible ATT&CK Techniques 1 AI

T1083 · File and Directory Discovery

Affected Version Matrix 1

VendorProduct Version RangeStatus
filebrowser filebrowser < 2.63.14 affected
Get alerts for future matching vulnerabilities Log in to subscribe

I. Basic Information for CVE-2026-54094

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Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.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: Symlink following lets scoped users read, overwrite, and share files outside their filebrowser scope
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. Prior to 2.63.14, it does not stop the HTTP file handlers from following symbolic links before they open, serve, write, share, or list a file. As a result, a scoped user — and in some cases an unauthenticated public-share recipient — can cross the intended scope boundary by following a symlink whose path is lexically inside their scope but whose target is outside it. This vulnerability is fixed in 2.63.14.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
对路径名的限制不恰当(路径遍历)
Source: CVE Program / CVE List V5
Vulnerability Title
File Browser 路径遍历漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
File Browser File Browser是File Browser团队的一款文件浏览管理软件。 File Browser 2.63.14之前版本存在安全漏洞，该漏洞源于未阻止HTTP文件处理器在打开、提供、写入、共享或列出文件之前跟随符号链接，可能导致限定用户或未经身份验证的共享接收者通过路径在限定范围内但其目标在限定范围之外的符号链接绕过预期范围边界。
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 < 2.63.14 -

II. Public POCs for CVE-2026-54094

# POC Description Source Link Shenlong Link
AI-Generated POC Premium
Qwen3.6-35B-A3B · 9080 chars
Pro+ exclusive includes:
Vulnerability reproduction recording (real sandbox build + trigger, exclusive)
In-depth vulnerability mechanism
Trigger conditions & impact
Full executable POC code
Exploit chain & mitigation
POC zip download
100+ AI POC generations per month

III. Intelligence Information for CVE-2026-54094

请登录查看更多情报信息。

Vendor Advisories for CVE-2026-54094 (1)

Same Patch Batch · filebrowser · 2026-06-25 · 10 CVEs total

CVE-2026-54089 9.1 CRITICAL File Browser: Authentication Bypass via Proxy Auth Header Forgery
CVE-2026-54096 8.4 HIGH File Browser: Improper Access Control Occurs via Pre-Created Public Share for a Non-existe
CVE-2026-55667 8.2 HIGH File Browser: Out-of-scope file deletion by a Create-only scoped user via symlink-followin
CVE-2026-54091 7.5 HIGH File Browser: Incorrect access control in public directory shares via rule path rebasing
CVE-2026-54092 6.5 MEDIUM File Browser: DoS Vulnerability on Public Login API
CVE-2026-54090 File Browser: Command Allowlist Bypass via Shell Metacharacter Injection
CVE-2026-54088 File Browser: Command Injection via Authentication Hook Shell Substitution (Pre-Authentica
CVE-2026-54093 File Browser: Path traversal in download-as-zip/tar via Windows-style backslash separators
CVE-2026-54097 File Browser: Cross-user unauthorized share-link deletion via unbounded prefix match in De

IV. Related Vulnerabilities

Same product: filebrowser
Same vendor: filebrowser
Same weakness: CWE-22

V. Comments for CVE-2026-54094

No comments yet

Leave a comment