CVE-2026-33070

Name: CVE-2026-33070
Creator: NVD / NIST
Published: 2026-03-20T09:16:15.347+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 4.8/10EPSS 0.37%

Last modified Jun 17, 2026

CVE-2026-33070 is a medium-severity vulnerability rated 4.8/10 on the CVSS scale. FileRise is a self-hosted web file manager / WebDAV server. In versions prior to 3.8.0, a missing-authentication vulnerability in the deleteShareLink endpoint allows any unauthenticated user to delete arbitrary file share links by providing only the share token, causing denial of service to shared file access. EPSS estimates a 0.37% chance of exploitation in the next 30 days.

Description

FileRise is a self-hosted web file manager / WebDAV server. In versions prior to 3.8.0, a missing-authentication vulnerability in the deleteShareLink endpoint allows any unauthenticated user to delete arbitrary file share links by providing only the share token, causing denial of service to shared file access. The POST /api/file/deleteShareLink.php endpoint calls FileController::deleteShareLink() which performs no authentication, authorization, or CSRF validation before deleting a share link. Any anonymous HTTP client can destroy share links. This issue is fixed in version 3.8.0.

Metrics

CVSS 3.1

4.8/10

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

EPSS Probability

0.37%

29.0th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-306

Affected Software

Vendor	Product	Versions
Filerise	Filerise	< 3.8.0

References

https://github.com/error311/FileRise/releases/tag/v3.8.0Product, Release Notes
https://github.com/error311/FileRise/security/advisories/GHSA-vh5m-w36c-99xvExploit, Mitigation, Vendor Advisory

Timeline

Published: Mar 20, 2026
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2026-33070?

How severe is CVE-2026-33070?

CVE-2026-33070 has a CVSS score of 4.8/10 (MEDIUM severity). The EPSS model estimates a 0.37% probability of exploitation in the next 30 days.

How do I fix CVE-2026-33070?

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-2026-33070?

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

Scan your code now

Source: NVD / NIST