CVE-2026-48811 MEDIUM

CVE-2026-48811: FreeScout: Thread Deletion Bypasses Mailbox Access Revocation

Vendor Freescout-Help-Desk
Product freescout
Weakness CWE-862 · Missing authorization
Published May 29, 2026
Last update June 1, 2026

CVSS base score

4.3/10
Attack vector Network
Attack complexity Low
Privileges required Low
User interaction None
Confidentiality None
Integrity Low

CVSS vector

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

What the vulnerability does

01Description

FreeScout is a free help desk and shared inbox built with PHP's Laravel framework. Prior to 1.8.221, FreeScout allows a non-admin user to permanently delete an internal note (private thread) from any conversation, even after that user's access to the mailbox containing the conversation has been revoked. The ThreadPolicy::delete authorization policy does not verify mailbox membership, so a former team member retains destructive write access to notes they created. This vulnerability is fixed in 1.8.221.

Key dates

02Disclosure timeline

May 29, 2026 CVE published
June 1, 2026 Record updated