CVE-2026-41191: Freescout-Help-Desk Freescout

High severity, CVSS 7.1. EPSS: 0.3% chance of exploitation in the next 30 days.

FreeScout is a free self-hosted help desk and shared mailbox. Prior to version 1.8.215, `MailboxesController::updateSave()` persists `chat_start_new` outside the allowed-field filter. A user with only the mailbox `sig` permission sees only the signature field in the UI, but can still change the hidden mailbox-wide chat setting via direct POST. Version 1.8.215 fixes the vulnerability.

Affected products

• Freescout-Help-Desk Freescout: before 1.8.215 (fixed in 1.8.215)

Published 2026-04-21. Last modified 2026-06-17.