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.
Published: 2026-11-03
Score: 7.1 High
EPSS: n/a
KEV: No
Impact: n/a
Action: n/a
AI Analysis

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Remediation

No vendor fix or workaround currently provided.

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Tracking

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Advisories

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History

Tue, 03 Nov 2026 23:00:00 +0000

Type Values Removed Values Added
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.
Title emailflare before commit cf31f33 Missing Authorization via Inbox Compose Endpoint
Weaknesses CWE-862
References
Metrics cvssV3_1

{'score': 6.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N'}

cvssV4_0

{'score': 7.1, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N'}

Subscriptions

No data.

cve-icon MITRE

Status: PUBLISHED

Assigner: VulnCheck

Published:

Updated: 2026-11-03T22:55:35.862Z

Reserved: 2026-11-03T22:17:03.875Z

Link: CVE-2026-121730

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-11-03T23:17:36.590

Modified: 2026-11-03T23:17:36.590

Link: CVE-2026-121730

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses