CVE-2026-41189 HIGH

CVE-2026-41189: FreeScout has assigned-only visibility bypass that allows editing hidden customer-authored threads

Vendor Freescout-Help-Desk
Product freescout
Weakness CWE-863 · Incorrect authorization
Published April 21, 2026
Last update April 21, 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

FreeScout is a free self-hosted help desk and shared mailbox. Prior to version 1.8.215, customer-thread editing is authorized through `ThreadPolicy::edit()`, which checks mailbox access but does not apply the assigned-only restriction from `ConversationPolicy`. A user who cannot view a conversation can still load and edit customer-authored threads inside it. Version 1.8.215 fixes the vulnerability.

Key dates

02Disclosure timeline

April 21, 2026 CVE published
April 21, 2026 Record updated