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CVE-2026-112776— Craft CMS 5.0.0 before 5.11.0 GraphQL Site-Scope Bypass via Mutations

Quick assessment

Affected
craftcms cms
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Craft CMS 5.0.0 至 5.11.0 版本之间存在一个授权绕过漏洞。由于未强制执行 检查，该漏洞允许作用域为特定站点的 GraphQL 令牌修改其他站点的内容。持有站点 A 令牌的攻击者可以通过传入的 在站点 B 中创建条目，并删除跨站点共享的条目、类别、标签和资产。

CVSS 9.8 · Critical

Affected Version Matrix 2

VendorProduct Version RangeStatus
craftcms cms 5.0.0< 5.11.0 affected
5.11.0 unaffected
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I. Basic Information for CVE-2026-112776

Vulnerability Information
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Vulnerability Title
Craft CMS 5.0.0 before 5.11.0 GraphQL Site-Scope Bypass via Mutations
Source: CVE Program / CVE List V5
Vulnerability Description
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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
授权机制不正确
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
craftcms cms 5.0.0 ~ 5.11.0 -

II. Public POCs for CVE-2026-112776

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III. Intelligence Information for CVE-2026-112776

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Vendor Advisories for CVE-2026-112776 (2)

Same Patch Batch · craftcms · 2026-10-19 · 8 CVEs total

CVE-2026-112770 8.8 HIGH Craft CMS before 4.18.8 and 5.11.0 Authenticated RCE via Twig group Filter Array-Callable
CVE-2026-112772 8.8 HIGH Craft CMS 5.0.0 before 5.11.0 RCE via Asset::getMimeType Transform Injection
CVE-2026-112773 8.8 HIGH Craft CMS 5.0.0 before 5.11.0 RCE via Twig Sandbox Behavior Injection
CVE-2026-112775 7.5 HIGH Craft CMS 5.0.0 before 5.11.0 Verification Code Reuse via users/set-password
CVE-2026-112774 7.2 HIGH Craft CMS 5.8.0 before 5.11.0 Admin RCE via ContentBlock Field Layout
CVE-2026-112777 7.2 HIGH Craft CMS before 4.18.8 and 5.11.0 Twig create() Blocklist Bypass Leading to RCE
CVE-2026-112771 6.5 MEDIUM Craft CMS before 4.18.8 and 5.11.0 Twig Sandbox Allowlist Bypass via Array Filters

IV. Related Vulnerabilities

Same product: cms
Same vendor: craftcms
Same weakness: CWE-863

V. Comments for CVE-2026-112776

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