What’s Vulnerable › Vulnerabilities

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

• Severity: medium (CVSS 4.3 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.2% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2026-03-26 · updated 2026-06-17
• Weakness: CWE-863

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.

Affected products

• error311 FileRise: from 2.3.7 before 3.11.0 — fixed in 3.11.0

How to fix

Upgrade to a fixed version: error311 FileRise 3.11.0. Check the vendor advisory for mitigations.

References

• https://github.com/error311/FileRise/releases/tag/v3.11.0
• https://github.com/error311/FileRise/security/advisories/GHSA-62wx-vp78-2p83
• https://github.com/error311/FileRise/security/advisories/GHSA-62wx-vp78-2p83

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