cvedb.io
CVE-2026-40569
CRITICAL · CVSS 9
EPSS exploitation probability: 0%
Published 2026-04-21T17:16:55.450 · Last modified 2026-06-17T10:45:28.137

Summary

FreeScout is a free self-hosted help desk and shared mailbox. Versions prior to 1.8.213 have a mass assignment vulnerability in the mailbox connection settings endpoints of FreeScout (`connectionIncomingSave()` at `app/Http/Controllers/MailboxesController.php:468` and `connectionOutgoingSave()` at line 398). Both methods pass `$request->all()` directly to `$mailbox->fill()` without any field allowlisting, allowing an authenticated admin to overwrite any of the 32 fields in the Mailbox model's `$fillable` array -- including security-critical fields that do not belong to the connection settings form, such as `auto_bcc`, `out_server`, `out_password`, `signature`, `auto_reply_enabled`, and `auto_reply_message`. Validation in `connectionIncomingSave()` is entirely commented out, and the validat

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References

This product uses data from the NVD API but is not endorsed or certified by the NVD. Informational only; not professional security advice.