CVE-2026-33330

FileRise ONLYOFFICE integration allows read-only users to overwrite files via forged save callback

HIGH
7.1
CVSS Score
Published: March 24, 2026 at 07:15 PM UTC
Updated: June 17, 2026 at 10:37 AM UTC
2 products affected across 2 vendorsFileriseFileRise

Using FileRise by error311?

Get instant alerts when new vulnerabilities affect FileRise - before attackers find them.

Real-time alertsTrack your software stackFree plan available
Severity
HIGH7.1
Exploit prediction
EPSS 0.4%
SSVC
PoC

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

v < 3.10.0
v < 3.10.0
Affected range stops below 3.10.0, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

References (3)

x_refsource_CONFIRMExploitMitigationVendor Advisory
Source: cverecord
https://github.com/error311/FileRise/security/advisories/GHSA-6c3j-f4x4-36m3
x_refsource_MISCProductRelease Notes
Source: cverecord
https://github.com/error311/FileRise/releases/tag/v3.10.0

SSVC — Action Prioritization

SSVCPoCNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

7.1HIGHGitHub_M
Attack Vector
NETWORK
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
LOW
Integrity
HIGH
Availability
NONE
Vector?

Quick Info

StatusANALYZED
CWE
CWE-863

Get alerted

Stop reading CVE feeds looking for your own stack

Track the products you run and VulnTracker tells you when a new CVE affects them — with what is known about fixing it, and nothing about the rest.

Free plan, no card