FreeScout is a free help desk and shared inbox built with PHP's Laravel framework. Prior to 1.8.221, while investigating the ThreadPolicy::delete issue reported previously, the same missing mailbox membership check was found in the sibling ThreadPolicy::edit method. A user with the PERM_EDIT_CONVERSATIONS permission who created a message or internal note in Mailbox A can rewrite that thread's body after an administrator removes them from Mailbox A, because the policy checks only authorship and a global permission flag — not current mailbox membership. This vulnerability is fixed in 1.8.221.
History

Fri, 29 May 2026 21:45:00 +0000

Type Values Removed Values Added
First Time appeared Freescout Helpdesk
Freescout Helpdesk freescout
Vendors & Products Freescout Helpdesk
Freescout Helpdesk freescout

Fri, 29 May 2026 20:15:00 +0000

Type Values Removed Values Added
Description FreeScout is a free help desk and shared inbox built with PHP's Laravel framework. Prior to 1.8.221, while investigating the ThreadPolicy::delete issue reported previously, the same missing mailbox membership check was found in the sibling ThreadPolicy::edit method. A user with the PERM_EDIT_CONVERSATIONS permission who created a message or internal note in Mailbox A can rewrite that thread's body after an administrator removes them from Mailbox A, because the policy checks only authorship and a global permission flag — not current mailbox membership. This vulnerability is fixed in 1.8.221.
Title FreeScout: Thread Edit Authorization Bypass via Missing Mailbox Check
Weaknesses CWE-285
References
Metrics cvssV3_1

{'score': 4.3, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N'}


cve-icon MITRE

Status: PUBLISHED

Assigner: GitHub_M

Published:

Updated: 2026-05-29T19:48:38.815Z

Reserved: 2026-05-22T20:57:10.976Z

Link: CVE-2026-48810

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Deferred

Published: 2026-05-29T20:16:29.083

Modified: 2026-05-29T20:21:38.773

Link: CVE-2026-48810

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-05-29T21:30:06Z