---
id: CVE-2026-112776
title: Craft CMS 5.0.0 before 5.11.0 GraphQL Site-Scope Bypass via Mutations
summary: >-
  Craft CMS from 5.0.0 before 5.11.0 contains an authorization bypass
  vulnerability that allows site-scoped GraphQL tokens to mutate other sites'
  content because requireAllowedSite() is not enforced. Attackers holding a
  site-A token can cr…
severity: critical
cvss: 9.8
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H'
cvssSource: cna
cwe:
  - CWE-863
vendor: craftcms
product: cms
affected:
  - cms >= 5.0.0 < 5.11.0
published: '2026-10-19'
updated: '2026-10-19'
sourceUpdated: '2026-10-19T19:10:53.896Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2026-112776'
references:
  - url: 'https://github.com/craftcms/cms/security/advisories/GHSA-7rr3-4jcm-x526'
    label: GitHub Security Advisory (GHSA-7rr3-4jcm-x526)
  - url: >-
      https://www.vulncheck.com/advisories/craft-cms-5.0.0-before-5.11.0-graphql-site-scope-bypass-via-mutations
    label: >-
      VulnCheck Advisory: Craft CMS 5.0.0 before 5.11.0 GraphQL Site-Scope
      Bypass via Mutations
tags:
  - cve.org
ingestedAt: '2026-10-19T19:38:06.461Z'
---

## Overview

Craft CMS from 5.0.0 before 5.11.0 contains an authorization bypass vulnerability that allows site-scoped GraphQL tokens to mutate other sites' content because requireAllowedSite() is not enforced. Attackers holding a site-A token can create entries in site B via supplied siteId and delete entries, categories, tags, and assets shared across sites.

## Affected

- `cms >= 5.0.0 < 5.11.0`

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.