CVE-2023-34251— Grav Server Side Template Injection vulnerability
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I. Basic Information for CVE-2023-34251
Vulnerability Information
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Vulnerability Title
Grav Server Side Template Injection vulnerability
Source: NVD (National Vulnerability Database)
Vulnerability Description
Grav is a flat-file content management system. Versions prior to 1.7.42 are vulnerable to server side template injection. Remote code execution is possible by embedding malicious PHP code on the administrator screen by a user with page editing privileges. Version 1.7.42 contains a fix for this issue.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
Source: NVD (National Vulnerability Database)
Vulnerability Type
对生成代码的控制不恰当(代码注入)
Source: NVD (National Vulnerability Database)
Vulnerability Title
Grav 代码注入漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Grav是一套可扩展的用于个人博客、小型内容发布平台和单页产品展示的CMS（内容管理系统）。 Grav 1.7.42之前版本存在代码注入漏洞，该漏洞源于存在服务器端模板注入 (SSTI)漏洞，允许攻击者通过在管理员屏幕上嵌入恶意PHP代码来实现远程代码执行。
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
II. Public POCs for CVE-2023-34251
| # | POC Description | Source Link | Shenlong Link |
|---|
AI-Generated POCPremium
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- https://github.com/getgrav/grav/security/advisories/GHSA-f9jf-4cp4-4fq5x_refsource_CONFIRM
- https://nvd.nist.gov/vuln/detail/CVE-2023-34251
Same Patch Batch · getgrav · 2023-06-14 · 5 CVEs total
| CVE-2023-34448 | 8.8 HIGH | Grav Server-side Template Injection (SSTI) via Twig Default Filters |
| CVE-2023-34253 | 8.8 HIGH | Grav vulnerable to Server-side Template Injection (SSTI) via Denylist Bypass |
| CVE-2023-34252 | 8.8 HIGH | Grav Server-side Template Injection via Insufficient Validation in filterFilter |
| CVE-2023-34452 | 5.4 MEDIUM | Grav vulnerable to Self Cross Site Scripting in /forgot_password |
IV. Related Vulnerabilities
Same product: grav
- CVE-2025-66312
Grav Admin Plugin vulnerable to Cross-Site Scripting (XSS) S - CVE-2025-66311
Grav vulnerable to Cross-Site Scripting (XSS) Stored endpoin - CVE-2025-66310
Grav vulnerable to Cross-Site Scripting (XSS) Stored endpoin - CVE-2025-66309
Grav vulnerable to Cross-Site Scripting (XSS) Reflected endp - CVE-2025-66308
Grav Admin Plugin vulnerable to Cross-Site Scripting (XSS) S
Same vendor: getgrav
- CVE-2020-36955
Grav CMS 1.6.30 Admin Plugin 1.9.18 - 'Page Title' Persisten - CVE-2021-47812
GravCMS 1.10.7 - Arbitrary YAML Write/Update (Unauthenticate - CVE-2025-66312
Grav Admin Plugin vulnerable to Cross-Site Scripting (XSS) S - CVE-2025-66311
Grav vulnerable to Cross-Site Scripting (XSS) Stored endpoin - CVE-2025-66310
Grav vulnerable to Cross-Site Scripting (XSS) Stored endpoin
Same weakness: CWE-94
- CVE-2021-47939
Evolution CMS 3.1.6 Authenticated Remote Code Execution via - CVE-2021-47938
ImpressCMS 1.4.2 Remote Code Execution via Autotasks - CVE-2021-47935
Sentry 8.2.0 Remote Code Execution via Pickle Deserializatio - CVE-2022-50944
Aero CMS 0.0.1 PHP Code Injection via posts.php - CVE-2026-8211
codelibs Fess JSP File AdminDesignAction.java update code in
V. Comments for CVE-2023-34251
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