EUVD-2026-24189CVSS VectorNVD
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:H/A:L
Lifecycle Timeline
2DescriptionNVD
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.
AnalysisAI
FreeScout versions prior to 1.8.214 allow authenticated agents in shared mailboxes to recall another agent's reply within a 15-second undo window due to insufficient authorization checks on the undo-send endpoint. The vulnerability requires agent-level authentication and shared mailbox access but enables one user to suppress a colleague's outbound communication, affecting message integrity and audit trails in multi-agent help desk environments.
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External POC / Exploit Code
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