VULNERABILITY INTELLIGENCE

CVE-2026-40592

CVSS score5.9 MEDIUM
EPSS probability0.24%
CISA KEVNot currently listed
Published2026-04-21
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:H/A:L

Description

FreeScout is a free self-hosted help desk and shared mailbox. Prior to version 1.8.214, the undo-send route `GET /conversation/undo-reply/{thread_id}` checks only whether the current user can view the parent conversation. It does not verify that the current user created the reply being undone. In a shared mailbox, one agent can therefore recall another agent's just-sent reply during the 15-second undo window. Version 1.8.214 fixes the vulnerability.

Weakness classification

  • security-advisories@github.com: CWE-862

Primary references