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CVE-2026-112774— Craft CMS 5.8.0 before 5.11.0 Admin RCE via ContentBlock Field Layout

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 5.8.0 至 5.11.0（不含 5.11.0）版本中存在一个远程代码执行漏洞。该漏洞允许已认证的管理员通过向 方法提供 JSON 格式的字段布局字符串，注入 Yii 行为（behaviors）。若启用了 选项，攻击者可利用包含 或 键的 payload 绕过 的防护，从而以 Web 服务用户身份执行操作系统命令并泄露敏感信息。

CVSS 7.2 · High

Affected Version Matrix 2

VendorProduct Version RangeStatus
craftcms cms 5.8.0< 5.11.0 affected
5.11.0 unaffected
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I. Basic Information for CVE-2026-112774

Vulnerability Information
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Vulnerability Title
Craft CMS 5.8.0 before 5.11.0 Admin RCE via ContentBlock Field Layout
Source: CVE Program / CVE List V5
Vulnerability Description
Craft CMS from 5.8.0 before 5.11.0 contains a remote code execution vulnerability that allows authenticated administrators to inject Yii behaviors by supplying a JSON-string field layout to ContentBlock::setFieldLayout(). Attackers with allowAdminChanges enabled can include 'as X' or 'on X' keys that bypass cleanseConfig() to execute OS commands as the web user and disclose secrets.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
对生成代码的控制不恰当(代码注入)
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
craftcms cms 5.8.0 ~ 5.11.0 -

II. Public POCs for CVE-2026-112774

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III. Intelligence Information for CVE-2026-112774

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Vendor Advisories for CVE-2026-112774 (2)

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

CVE-2026-112776 9.8 CRITICAL Craft CMS 5.0.0 before 5.11.0 GraphQL Site-Scope Bypass via Mutations
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-2026-112777 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-94

V. Comments for CVE-2026-112774

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