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Vulnerability record · CVE-2026-41191 · published 21 April 2026

CVE-2026-41191: Incorrect authorization vulnerability

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.

7.1 CVSS 3.1 High EPSS 0.34% · top 75.1% CWE-863 · Incorrect authorization Deferred
7.1CVSS 3.1 base score
0.34%EPSS exploitation probability, 30 days
NoNot in CISA KEV
0Affected product versions listed by NVD
3References
17 Jun 2026Last modified by NVD

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.

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

References

LinkTags
https://github.com/freescout-help-desk/freescout/commit/fb130de64e1c830d85dd6988eaa08d725a7be954
https://github.com/freescout-help-desk/freescout/releases/tag/1.8.215
https://github.com/freescout-help-desk/freescout/security/advisories/GHSA-wpv9-c2gv-2j82

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Source: NIST National Vulnerability Database (record CVE-2026-41191), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.