CVE-2026-40592
MEDIUM EPSS 14.7%
Published Apr 21, 20262mo ago · Modified Jun 17, 20261w ago
5.9 CVSS 3.1
Published Apr 21, 2026 2mo ago
Last Modified Jun 17, 2026 1w ago
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.
CVSS Details
Base Score
Exploitability
Impact
Vector string
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:H/A:L Attack Vector Network
Attack Complexity High
Privileges Required Low
User Interaction None
Scope Unchanged
Confidentiality None
Integrity High
Availability Low
Threat Intelligence
EPSS Exploit Probability
14.7% percentile
Exploit & Patch Status
No Known Exploit
No Patch Available
Weaknesses 1
CWE-862 Missing Authorization Authorization
References 3
- github.com https://github.com/freescout-help-desk/freescout/commit/c779afdda86fa00a4b85779e034bbfd9ce20c76d
- github.com https://github.com/freescout-help-desk/freescout/releases/tag/1.8.214
- github.com https://github.com/freescout-help-desk/freescout/security/advisories/GHSA-674v-r6xp-mvp6
Remediation
No remediation data recorded yet
Check vendor advisories and the NVD entry for patch availability.