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CVE-2026-40592

FreeScout's cross-user undo reply allows mailbox peers to recall another agent's outbound reply PUBLISHED

Description (CNA)

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.

Affected (CNA)

Vendor / productVersions
freescout-help-desk / freescoutaffected < 1.8.214

CWE

CWE-862

References

ADP enrichment

CISA-ADP

No English description supplied.

No references supplied.