CVE-2026-33330 HIGH

CVE-2026-33330: FileRise ONLYOFFICE integration allows read-only users to overwrite files via forged save callback

Vendor Error311
Product FileRise
Weakness CWE-863 · Incorrect authorization
Published March 24, 2026
Last update March 24, 2026
View on NVD All CVEs

CVSS base score

7.1/10
Attack vector Network
Attack complexity Low
Privileges required Low
User interaction None
Confidentiality Low
Integrity High

CVSS vector

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

What the vulnerability does

01Description

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.

Key dates

02Disclosure timeline

March 24, 2026 CVE published
March 24, 2026 Record updated