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.

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Fixes

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History

Tue, 21 Apr 2026 17:15:00 +0000

Type Values Removed Values Added
Description 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.
Title FreeScout's signature only mailbox permission allows unauthorized mailbox chat setting changes
Weaknesses CWE-863
References
Metrics cvssV3_1

{'score': 7.1, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:N'}


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cve-icon MITRE

Status: PUBLISHED

Assigner: GitHub_M

Published:

Updated: 2026-04-21T17:09:26.481Z

Reserved: 2026-04-18T02:51:52.973Z

Link: CVE-2026-41191

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-04-21T17:16:57.653

Modified: 2026-04-21T17:16:57.653

Link: CVE-2026-41191

cve-icon Redhat

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cve-icon OpenCVE Enrichment

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Weaknesses