CVE-2026-33477

Name: CVE-2026-33477
Creator: NVD / NIST
Published: 2026-03-26T18:16:29.58+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 4.3/10EPSS 0.22%

Last modified Jun 17, 2026

CVE-2026-33477 is a medium-severity vulnerability rated 4.3/10 on the CVSS scale. 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. EPSS estimates a 0.22% chance of exploitation in the next 30 days.

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.

Metrics

CVSS 3.1

4.3/10

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N

EPSS Probability

0.22%

13.1th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-863

Affected Software

Vendor	Product	Versions
Filerise	Filerise	>= 2.3.7, < 3.11.0

References

https://github.com/error311/FileRise/releases/tag/v3.11.0Release Notes
https://github.com/error311/FileRise/security/advisories/GHSA-62wx-vp78-2p83Exploit, Mitigation, Vendor Advisory
https://github.com/error311/FileRise/security/advisories/GHSA-62wx-vp78-2p83Exploit, Mitigation, Vendor Advisory

Timeline

Published: Mar 26, 2026
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2026-33477?

How severe is CVE-2026-33477?

CVE-2026-33477 has a CVSS score of 4.3/10 (MEDIUM severity). The EPSS model estimates a 0.22% probability of exploitation in the next 30 days.

How do I fix CVE-2026-33477?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2026-33477?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST