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CVE-2026-72827— Grav CMS before 2.0.13 Remote Code Execution via Twig

Quick assessment

Affected
getgrav grav
Exploitation
Public or AI PoC available; prioritize validation
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Grav是Grav组织开源的一款基于文件的扁平化内容管理系统。 Grav 2.0.13之前版本存在代码注入漏洞，该漏洞源于email-action参数存在服务器端模板注入漏洞，攻击者可利用未沙箱化的find过滤器在邮件主题、正文、收件人或发件人字段注入Twig有效载荷，导致低权限页面编辑器执行任意操作系统命令。

CVSS 8.8 · High EPSS 0.85% · P57

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application

Affected Version Matrix 2

VendorProduct Version RangeStatus
getgrav grav < 2.0.13 affected
2.0.13 unaffected
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I. Basic Information for CVE-2026-72827

Vulnerability Information
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Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.

Vulnerability Title
Grav CMS before 2.0.13 Remote Code Execution via Twig
Source: CVE Program / CVE List V5
Vulnerability Description
Grav CMS before 2.0.13 contains a server-side template injection vulnerability in email-action parameters that allows low-privileged page editors to execute arbitrary operating-system commands. Attackers can inject Twig payloads using the unsandboxed find filter in email subject, body, to, or from fields to achieve remote code execution when forms are submitted.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
CWE-1336
Source: CVE Program / CVE List V5
Vulnerability Title
Grav 代码注入漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Grav是Grav组织开源的一款基于文件的扁平化内容管理系统。 Grav 2.0.13之前版本存在代码注入漏洞，该漏洞源于email-action参数存在服务器端模板注入漏洞，攻击者可利用未沙箱化的find过滤器在邮件主题、正文、收件人或发件人字段注入Twig有效载荷，导致低权限页面编辑器执行任意操作系统命令。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
getgrav grav 0 ~ 2.0.13 -

II. Public POCs for CVE-2026-72827

# POC Description Source Link Shenlong Link
AI-Generated POC Premium
Qwen3.6-35B-A3B · 7464 chars
Pro+ exclusive includes:
Vulnerability reproduction recording (real sandbox build + trigger, exclusive)
In-depth vulnerability mechanism
Trigger conditions & impact
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Exploit chain & mitigation
POC zip download
100+ AI POC generations per month

III. Intelligence Information for CVE-2026-72827

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Vendor Advisories for CVE-2026-72827 (2)

Same Patch Batch · getgrav · 2026-08-14 · 15 CVEs total

CVE-2026-72824 8.8 HIGH Grav before 1.0.13 API Key Scope Bypass via PagesController
CVE-2026-72826 8.8 HIGH Grav before 1.0.13 Scope Bypass via createApiKey
CVE-2026-72819 8.8 HIGH Grav CMS before 2.0.13 Remote Code Execution via ZIP Upload
CVE-2026-72831 8.8 HIGH Grav through 2.0.11 Authentication Bypass via Flex Objects
CVE-2026-72822 8.8 HIGH Grav before 1.0.13 Authentication Bypass via disable2fa
CVE-2026-72830 8.8 HIGH Grav API Plugin before 1.0.13 RCE via ConfigController scope bypass
CVE-2026-72833 8.8 HIGH Grav 1.0.6 through 1.0.11 Privilege Escalation via Scoped API Keys
CVE-2026-72829 8.8 HIGH Grav before 1.0.13 API Key Scope Bypass via UsersController
CVE-2026-72825 7.6 HIGH Grav before 1.0.13 API-key scope cap bypass via ReportsController
CVE-2026-72828 7.2 HIGH Grav before 1.0.13 API Key Scope Bypass via InvitationsController
CVE-2026-72821 5.4 MEDIUM Grav Form Plugin before 9.1.15 Stored XSS via Radio Toggle
CVE-2026-72832 5.4 MEDIUM Grav before 2.0.12 Stored XSS via quoted-attribute bypass
CVE-2026-72823 5.4 MEDIUM Grav before 1.0.13 API-key scope cap bypass via DemoController
CVE-2026-72820 4.9 MEDIUM Grav 2.0.11 Path Traversal via Backup Profile Configuration

IV. Related Vulnerabilities

Same product: grav
Same vendor: getgrav
Same weakness: CWE-1336

V. Comments for CVE-2026-72827

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