CVE-2026-121620

MediumCVSS 6.5/10Last modified Nov 12, 2026

Description

CoopCycle coopcycle-web 5.6.0 before 6.20.0 contains a missing authentication vulnerability that allows unauthenticated attackers to forge Zelty webhook events because the x-zelty-hmac-sha256 HMAC signature is never verified. Attackers can POST forged dish, menu, option and order-status events to /api/zelty/webhook/* endpoints to toggle restaurant products and alter order preparation states.

Metrics

CVSS 3.1 6.5/10CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:L

Weakness enumeration

CWE-345

Affected software

No affected versions have been published.

Timeline

Published: Nov 4, 2026
Last modified: Nov 12, 2026
NVD status: Deferred

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