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CVE-2026-33477— FileRise has incorrect authorization in /api/file/snippet.php allows read_own users to read other users’ file content

Quick assessment

Affected
error311 FileRise
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.

FileRise是Ryan个人开发者的一个轻量级、自托管的基于web的文件管理器。 FileRise 3.10.0及之前版本存在安全漏洞，该漏洞源于服务器端授权缺陷，可能导致用户读取同一文件夹中其他用户的文件片段。

CVSS 4.3 · Medium EPSS 0.32% · P22

Possible ATT&CK Techniques 1 AI

T1530 · Data from Cloud Storage
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I. Basic Information for CVE-2026-33477

Vulnerability Information
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Vulnerability Title
FileRise has incorrect authorization in /api/file/snippet.php allows read_own users to read other users’ file content
Source: CVE Program / CVE List V5
Vulnerability Description
FileRise is a self-hosted web-based file manager with multi-file upload, editing, and batch operations. In versiosn 2.3.7 through 3.10.0, the file snippet endpoint `/api/file/snippet.php` allows an authenticated user with only `read_own` access to a folder to retrieve snippet content from files uploaded by other users in the same folder. This is a server-side authorization flaw in the `read_own` enforcement for hover previews. Version 3.11.0 fixes the issue.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/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
FileRise 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
FileRise是Ryan个人开发者的一个轻量级、自托管的基于web的文件管理器。 FileRise 3.10.0及之前版本存在安全漏洞，该漏洞源于服务器端授权缺陷，可能导致用户读取同一文件夹中其他用户的文件片段。
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
error311 FileRise >= 2.3.7, < 3.11.0 -

II. Public POCs for CVE-2026-33477

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III. Intelligence Information for CVE-2026-33477

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Vendor Advisories for CVE-2026-33477 (1)

Other References for CVE-2026-33477 (1)

IV. Related Vulnerabilities

Same product: FileRise
Same vendor: error311
Same weakness: CWE-863

V. Comments for CVE-2026-33477

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