CVE-2026-33330

Name: CVE-2026-33330
Creator: NVD / NIST
Published: 2026-03-24T20:16:28.387+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.1/10EPSS 0.38%

Last modified Jun 17, 2026

CVE-2026-33330 is a high-severity vulnerability rated 7.1/10 on the CVSS scale. FileRise is a self-hosted web file manager / WebDAV server. Prior to version 3.10.0, a broken access control issue in FileRise's ONLYOFFICE integration allows an authenticated user with read-only access to obtain a signed save callbackUrl for a file and then directly forge the ONLYOFFICE save callback to overwrite that file with attacker-controlled content. EPSS estimates a 0.38% chance of exploitation in the next 30 days.

Description

FileRise is a self-hosted web file manager / WebDAV server. Prior to version 3.10.0, a broken access control issue in FileRise's ONLYOFFICE integration allows an authenticated user with read-only access to obtain a signed save callbackUrl for a file and then directly forge the ONLYOFFICE save callback to overwrite that file with attacker-controlled content. This issue has been patched in version 3.10.0.

Metrics

CVSS 3.1

7.1/10

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

EPSS Probability

0.38%

29.5th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-863

Affected Software

Vendor	Product	Versions
Filerise	Filerise	< 3.10.0

References

https://github.com/error311/FileRise/commit/3871f9fd1661688bed4f7dd23912be0ebf50973cPatch
https://github.com/error311/FileRise/releases/tag/v3.10.0Product, Release Notes
https://github.com/error311/FileRise/security/advisories/GHSA-6c3j-f4x4-36m3Exploit, Mitigation, Vendor Advisory

Timeline

Published: Mar 24, 2026
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2026-33330?

How severe is CVE-2026-33330?

CVE-2026-33330 has a CVSS score of 7.1/10 (HIGH severity). The EPSS model estimates a 0.38% probability of exploitation in the next 30 days.

How do I fix CVE-2026-33330?

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-2026-33330?

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

Scan your code now

Source: NVD / NIST