CVE-2026-84796

HighCVSS 8.8/10Last modified Sep 2, 2026

Description

Craft CMS versions before 5.10.11 contain a site scope bypass vulnerability in GraphQL entry mutation resolvers that fail to validate siteId through ArgumentManager::prepareArguments(). Attackers with tokens scoped to one site can read, modify, or delete entries across unauthorized sites by passing siteId directly in mutation arguments.

Metrics

CVSS 3.1 8.8/10CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Weakness enumeration

Affected software

No affected versions have been published.

Timeline

Published
Sep 2, 2026
Last modified
Sep 2, 2026
NVD status
Deferred

Related CVEs from 2026

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CVE-2026-84796: High severity, CVSS 8.8 | Vulnix