[ CVE-2026-121730 · Published 3 Nov 2026 ]
Vulnerability in 0xdps emailflare
CVSS 6.5
EPSS <1%No fix listed yet
[ Description ]Official description
emailflare before commit cf31f33 contains a missing authorization vulnerability in POST /api/inbox/compose that allows authenticated members to send mail as any sender address. Attackers can supply an arbitrary from field, which is passed unchecked to the Cloudflare send call, to impersonate other users or the organization to external recipients.
[ Fixes ]Fixes and patches
No fix or interim patch is linked from our sources yet. Check the vendor references below and limit exposure of affected systems until a fix is available.