PT-2026-136955

CVE-2026-121620

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Published

2026-11-04

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Updated

2026-11-04

Description by

CVSS 3.1
6.5
Medium
MetricsAV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:L
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.
Exploitability
Fix
Impacts
Researchers
Vendors
Affected products
Weakness enumeration
CWE-345: Insufficient Verification of Data Authenticity
Related identifiers
CVE-2026-121620
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